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i want answers for book oxford new enjoying mathematics chapter no 5 playing with numbers ex 5.3
ahmed buys a plot of land of rs 96000 he sells 2/5 of it at loss of 6 percent , at what gain percent should he sell the remaining part of the plot to gain 10 percent on the whole ?
in two digit number, the digit at the units place is double the the digit in the tens place. the number exceeds the the sum of its digit by 18 .find the number.
IQ LVL TEST.
Complete the pattern :
0, 6, 24, 60, 120, 210, ?
the sum of the digits of the two digit number is 15.the number obtained by interchanging its digits exceeds the given number by 9. find the original number.
If 24x is a multiple of 3, where x is a digit, what is the value of x?
(Since 24x is a multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers: 0, 3, 6, 9, 12, 15, 18…. But since x is a digit, it can only be that 6 + x = 6 or 9 or 12 or 15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values)
A] find all possible values of x for which the number 7x3 is divisible by 3 . also find each such number.
B] find all possible values of y for which the number 53y1 is divisible by3 .also find each such number.
-20 = -20
16-36= 25-45
16-36 +(9/2)= 25-45 +(9/2) (adding 9/2 on both sides)
(4-9/2) (4-9/2)= (5-9/2) (5-9/2) (by a-b whole square formula)
4=5 (-9/2 = -9/2 )
where 4 is not = 5 find out mistake
In a division sum, the divisor is 12 times the quotient and 5 times the remainder. If the remainder is 48 then what is the dividend?
please explain by solving .
rn1. Write a 2-digit number ab and the number obtained by reversing its digits i.e., ba. Findrntheir sum. Let the sum be a 3-digit number dad i.e., ab + ba = dadrn(10a + b) + (10b + a) = dadrn11(a + b) = dadrnThe sum a + b can not exceed 18 (Why?).rnIs dad a multiple of 11?rnIs dad less than 198?rnWrite all the 3-digit numbers which are multiples of 11 upto 198.rnFind the values of a and d.rn3. If 21y5 is a multiple of 9, where y is a digit, what is the value of y?rn4. If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find thatrnthere are two answers for the last problem. Why is this so?rn5. If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is arnmultiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers:rn0, 3, 6, 9, 12, 15, 18, ... . But since x is a digit, it can only be that 6 + x = 6 or 9 or 12rnor15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values.)rn6. If 31z5 is a multiple of 3, where z is a digit, what might be the values of z?rn rn
1. Write a 2-digit number ab and the number obtained by reversing its digits i.e., ba. Find
their sum. Let the sum be a 3-digit number dad i.e., ab + ba = dad
(10a + b) + (10b + a) = dad
11(a + b) = dad
The sum a + b can not exceed 18 (Why?).
Is dad a multiple of 11?
Is dad less than 198?
Write all the 3-digit numbers which are multiples of 11 upto 198.
Find the values of a and d.
3. If 21y5 is a multiple of 9, where y is a digit, what is the value of y?
4. If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find that
there are two answers for the last problem. Why is this so?
5. If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is a
multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers:
0, 3, 6, 9, 12, 15, 18, ... . But since x is a digit, it can only be that 6 + x = 6 or 9 or 12
or15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values.)
6. If 31z5 is a multiple of 3, where z is a digit, what might be the values of z?
what is the divisibility test of 7?
A246
52B7
ANS ICDE
HOW TO SUBTRACT
in a 3-digit number, the tens digit is thrice the units digit and the hundreds digits is four times the units digits.also, the sum of its digits is 16. find the number.
without doing actual division, find the remainder when;
also write the steps to find the ans.
Find the largest number which divides 630 & 940 leaving remainder 6 & 4 respictivly in each case
debu walks towards east then towards north and turning then 45 degrees right walks for a while and lastly turns towards the left. In which direction is he walking now?
a) north
b) east
c) south east
d) north west
this language is exactly as it is in the book. the question is taken from R gupta's popular master guide--NTSE book---pg no.-98 ques no. 5
PQ * P3= 57Q.
P=? Q=?
A no. consists of 3 digits , the right hand being zero. If the left hand and middle digits be interchanged the no. is diminished by 180.If the left hand digit be halved and middle and right hand digits be interchanged the no. is diminished by 454. Find the no. .
Write the numbers in according to Indian or international system of numeration in
i a two digit number the digit at the units place is double the digit in the tes place . the number exceeds the sum of its digits by 18 find the number
Construct a 3*3 magic square with magic sum 54.
Find the greatest number which divides 645 and 792 leaving a remainder 7 and 9 respectively
A wall clock gains 2 minutes in every 12 hours while a table clock loses 2 mins. every 36 hrs. Both are set right at 12 noon on Tuesday . The correct time when both show same time next woul be ?
options : (a) 1.30 at night, after 130 days
(b)12 midnight , after 135 days
(c) 12.30 at night ,after 130 days
(d) 12 noon, after 135 days
the sum of the digits of a two digit number is 12 , if the new number formed by reversing the digits is greater than the original number by 54, find the original number.
meritnation expert please answer to this qusstion as i am having my exams on sunday pls
the units digit of a two digit number is 3 and seven times the sum of the digits is the number itself. find the number.
The difference between two positive integers is 3.If the sum of their squares is 369,what is the sum of the numbers.?
write the smallest 4 digit number and express it in terms of prime factor
find two numbers whose product is a 1-digit number and the sum is a 2-digit number.
complete the following series
34,25,29,85,89,?
and explain please
The sum of two positive numbers a & b is 820.If a-b=80, find the values of a & b
I am confused in this sum. help...
If 31z5 is a multiple of 3, where z is a digit, what might be the values of z?
Rajdhani Express leave Delhi for Jaipur at a speed of 120km/h . After 90 minutes,another trian Delhi Express Leaves for jaipur for Delhi at a speed of 100km/h . Whenthe two traians cross EAch other wich trian is closer tro jaipur??
YE * ME = TTT find Y,E,M,T and Y+M+E+T
if RAT=42 and CAT=57,LATE=?
if the division N / 5 leaves a remainder of 3 , what might be the ones digit of N ?
Nana sold her tea at 65 per gram in 2006,which was 25% more then what it was in 2004.What was the price of tea in 2004?Please help experts.
IF 'ZIP'=30 AND 'ZAP'=38
THEN HOW WILL YOU CODE VIP?
The difference between a two digit number and the number obtained by interchanging its digits is 63 . What is the difference between the digits of the number ?
The product of 2-digit numbers is 1675. The product of their ones digit is 35 and that of their tens digit is 12. Find the number..
--!! PLEASE HELP ME !!--
the units digit of a two -digit number is 3 and seven times the sum of the digits is the number itself.Find the number .
Find the values of A, B, C, D,E,F, G, H, and I if ABC + DEF = GHI when A x B = 3
solve crptarytham
ab +ba =dad
find value of a ,b,d
Rajesh has forgotten his combination of lock number.He knows that it is a four digit odd number, which is divisible by 3. Also, the ones digit and hundreds digit are the same. Tens digit and thousands digit are same too. The tens digit is smaller than ones digit. He is pretty sure that there are no zeroes. How many numbers would satisfy these conditions?
show syllabus for ntse examination
Think of a number . Double it . Add 18 . Take away 10 . Have it . Take away 4 . Now , what do you get and why?
This is called magic number trick. Make a magic number trick of your own.
solve the cryptograms : AB+AB=CAC
Solve The Question-:
A B
x B A
=(B +1) C B
60ab57377 is divisible by 99 .Find a and b?
ABB*999=ABC123 find A,B,C ?
E.g: 9876543210, 01112345678
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Syllabus
i want answers for book oxford new enjoying mathematics chapter no 5 playing with numbers ex 5.3
ahmed buys a plot of land of rs 96000 he sells 2/5 of it at loss of 6 percent , at what gain percent should he sell the remaining part of the plot to gain 10 percent on the whole ?
in two digit number, the digit at the units place is double the the digit in the tens place. the number exceeds the the sum of its digit by 18 .find the number.
IQ LVL TEST.
Complete the pattern :
0, 6, 24, 60, 120, 210, ?
the sum of the digits of the two digit number is 15.the number obtained by interchanging its digits exceeds the given number by 9. find the original number.
Find the value of A,B,C.
If 24x is a multiple of 3, where x is a digit, what is the value of x?
(Since 24x is a multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers: 0, 3, 6, 9, 12, 15, 18…. But since x is a digit, it can only be that 6 + x = 6 or 9 or 12 or 15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values)
102-1=99
how is it possible?
A] find all possible values of x for which the number 7x3 is divisible by 3 . also find each such number.
B] find all possible values of y for which the number 53y1 is divisible by3 .also find each such number.
-20 = -20
16-36= 25-45
16-36 +(9/2)= 25-45 +(9/2) (adding 9/2 on both sides)
(4-9/2) (4-9/2)= (5-9/2) (5-9/2) (by a-b whole square formula)
4=5 (-9/2 = -9/2 )
where 4 is not = 5 find out mistake
In a division sum, the divisor is 12 times the quotient and 5 times the remainder. If the remainder is 48 then what is the dividend?
please explain by solving .
rn
1. Write a 2-digit number ab and the number obtained by reversing its digits i.e., ba. Find
rntheir sum. Let the sum be a 3-digit number dad i.e., ab + ba = dad
rn(10a + b) + (10b + a) = dad
rn11(a + b) = dad
rnThe sum a + b can not exceed 18 (Why?).
rnIs dad a multiple of 11?
rnIs dad less than 198?
rnWrite all the 3-digit numbers which are multiples of 11 upto 198.
rnFind the values of a and d.
rn3. If 21y5 is a multiple of 9, where y is a digit, what is the value of y?
rn4. If 31z5 is a multiple of 9, where z is a digit, what is the value of z? You will find that
rnthere are two answers for the last problem. Why is this so?
rn5. If 24x is a multiple of 3, where x is a digit, what is the value of x? (Since 24x is a
rnmultiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers:
rn0, 3, 6, 9, 12, 15, 18, ... . But since x is a digit, it can only be that 6 + x = 6 or 9 or 12
rnor15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values.)
rn6. If 31z5 is a multiple of 3, where z is a digit, what might be the values of z?
rn
rnwhat is the divisibility test of 7?
A246
52B7
ANS ICDE
HOW TO SUBTRACT
in a 3-digit number, the tens digit is thrice the units digit and the hundreds digits is four times the units digits.also, the sum of its digits is 16. find the number.
without doing actual division, find the remainder when;
also write the steps to find the ans.
Find the largest number which divides 630 & 940 leaving remainder 6 & 4 respictivly in each case
debu walks towards east then towards north and turning then 45 degrees right walks for a while and lastly turns towards the left. In which direction is he walking now?
a) north
b) east
c) south east
d) north west
this language is exactly as it is in the book. the question is taken from R gupta's popular master guide--NTSE book---pg no.-98 ques no. 5
PQ * P3= 57Q.
P=? Q=?
A no. consists of 3 digits , the right hand being zero. If the left hand and middle digits be interchanged the no. is diminished by 180.If the left hand digit be halved and middle and right hand digits be interchanged the no. is diminished by 454. Find the no. .
Write the numbers in according to Indian or international system of numeration in
wordsa) 19, 15, 60,050b) 20, 48, 74,873c) 97, 97, 97,994i a two digit number the digit at the units place is double the digit in the tes place . the number exceeds the sum of its digits by 18 find the number
5*3=51
5*4=02
5*4=52
Then what is
5*6=?
a b c
+x y z
[]p q r
Construct a 3*3 magic square with magic sum 54.
Find the greatest number which divides 645 and 792 leaving a remainder 7 and 9 respectively
A wall clock gains 2 minutes in every 12 hours while a table clock loses 2 mins. every 36 hrs. Both are set right at 12 noon on Tuesday . The correct time when both show same time next woul be ?
options : (a) 1.30 at night, after 130 days
(b)12 midnight , after 135 days
(c) 12.30 at night ,after 130 days
(d) 12 noon, after 135 days
the sum of the digits of a two digit number is 12 , if the new number formed by reversing the digits is greater than the original number by 54, find the original number.
meritnation expert please answer to this qusstion as i am having my exams on sunday pls
the units digit of a two digit number is 3 and seven times the sum of the digits is the number itself. find the number.
The difference between two positive integers is 3.If the sum of their squares is 369,what is the sum of the numbers.?
write the smallest 4 digit number and express it in terms of prime factor
find two numbers whose product is a 1-digit number and the sum is a 2-digit number.
complete the following series
34,25,29,85,89,?
and explain please
The sum of two positive numbers a & b is 820.If a-b=80, find the values of a & b
I am confused in this sum. help...
If 31z5 is a multiple of 3, where z is a digit, what might be the values of z?
Rajdhani Express leave Delhi for Jaipur at a speed of 120km/h . After 90 minutes,another trian Delhi Express Leaves for jaipur for Delhi at a speed of 100km/h . Whenthe two traians cross EAch other wich trian is closer tro jaipur??
YE * ME = TTT find Y,E,M,T and Y+M+E+T
if RAT=42 and CAT=57,LATE=?
a)111, b)37, c)3
if the division N / 5 leaves a remainder of 3 , what might be the ones digit of N ?
Nana sold her tea at 65 per gram in 2006,which was 25% more then what it was in 2004.What was the price of tea in 2004?Please help experts.
A) 1 lakh= ---
B) 1 million= ---
C) 10 billion= ---
D) 100 thousands= --- lakh
IF 'ZIP'=30 AND 'ZAP'=38
THEN HOW WILL YOU CODE VIP?
The difference between a two digit number and the number obtained by interchanging its digits is 63 . What is the difference between the digits of the number ?
The product of 2-digit numbers is 1675. The product of their ones digit is 35 and that of their tens digit is 12. Find the number..
--!! PLEASE HELP ME !!--
the units digit of a two -digit number is 3 and seven times the sum of the digits is the number itself.Find the number .
Find the values of A, B, C, D,E,F, G, H, and I if ABC + DEF = GHI when A x B = 3
solve crptarytham
ab +ba =dad
find value of a ,b,d
Rajesh has forgotten his combination of lock number.He knows that it is a four digit odd number, which is divisible by 3. Also, the ones digit and hundreds digit are the same. Tens digit and thousands digit are same too. The tens digit is smaller than ones digit. He is pretty sure that there are no zeroes. How many numbers would satisfy these conditions?
show syllabus for ntse examination
Think of a number . Double it . Add 18 . Take away 10 . Have it . Take away 4 . Now , what do you get and why?
rnThis is called magic number trick. Make a magic number trick of your own.
solve the cryptograms : AB+AB=CAC
Solve The Question-:
A B
x B A
=(B +1) C B
60ab57377 is divisible by 99 .Find a and b?
ABB*999=ABC123 find A,B,C ?