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what is the formula for finding cost price?1) The price of sugar increases by 25%. By what % must a house-wife reduce her consumption so that the expenditure does not increase.

2) In an examination, 95% of candidates passed and 25 failed. How many candidates appeared for the examination?

Find the ratio of:

(a) Rs 5 to 50 paise (b) 15 kg to 210 g

(c) 9 m to 27 cm (d) 30 days to 36 hours

What amount is 10% more than Rs 90 ?

At what rate percent per annum will a sum of money double in 8 years ?

Find the whole quantity if

(a) 5% of it is 600 (b) 12% of it is 1080

(c) 40% of it is 500 km (d) 70% of it is 14 minutes

(e) 8% of it is 40 litres

a fruit seller bought 8 boxes of grapes at Rs.150 each. one box was damaged. he sold the remaining boxes at Rs.190 each. find the profit /loss percent.

Convert each part of the ratio to percentage:

(a) 3:1 (b) 2:3:5 (c) 1:4 (d) 1:2:5

1. what principal will amount to Rs 900 in 6 years at 10% simple interest?

An ore contains 12% copper.how many kilograms of the ore are required to get 69 kg of copper?

1200 soldiers in a fort had enough food for 28 days.After 4 days some soldiers were transferred to another fort and thus the food lasted for an extra 32 days .How many soldiers left the fort?

The perimeter of a circle is equal to that of a square. Their areas are in the ratio of ____.

A vendor purchased 40 dozens bananas for Rs250. Out of these 30 bananas were rotten and could not be sold. At what rate per dozen should he sell the remaining bananas to make a profit of 20%.

Saina plays football every 4th day. If she played football on Tuesday, after how many days will she play football again on a Friday?

a. 23 b. 20 c.26 d.24

Juhi sells a washing machine for Rs 13, 500. She loses 20% in the bargain. What was the price at which she bought it?Can you please explain it in a simple manner.

four quantities a,b,c & d are said to be in proportion if-

a) ad=bc b) cd=ab c) ac=bd d) ab=bc

explain how?

A number exceeds 20% of itself by 40.What is the number?

a:b=2:3

b:c=4:5

then a:c=

70% of the students in a school are boys and the number of girls is 504. Find the number of boys in the school

Rs.50 is divided among 6 men,12 women and 17 boys so that 2 men get as much as 5 boys and 2 women as much as 3 boys , then the share of a boy is ------------------

a]RS.1.20 b]RS.1 c]RS.1.80 D] none of these

Two numbers are 20% and 25% less than a third number respectively. how much % is the second number less than the first number ?

on selling a mobile for rupees 750 a shopkeeper looses 10%.for what amount should he sell it to gain 5%

A bicycle dealer allows 10% discount and still makes profit of 20% on his bicycle.if the total profit he makes is Rs 150,find the list price of the bicycle

the length of the rectangle is?

2) The ratio of 1 hour to 300 seconds is?

3) I have a box which has 3 green, 9 blue, 4 yellow, 8 orange coloured cubes in it

(a) What is the ratio of orange to yellow cubes?

(b) What is the ratio of green to blue cubes?

(c) How many different ratios can be formed, when you compare each colour to any one

of the other colours?

In how much time would the simple interes on a certain sum be 0.125 times the principal at 10% per annum?

Can you eat 100%of the cake?

Can you eat 150 % of the cake?

In an examination, 96% of the candidates passed and 50 failed. How many candidates appeared?

A borrows RS8000 at 12% per annum simple intrest and B borrows RS 9100 at 10% per annum simple intrest.In how many years will their amount be equal

In an election between two candidates, the candidates who gets 30% of the votes polled is defeated by 15000 votes. What is the number of votes polled by the winning canndidate?

A DRESS BOUGHT FOR RUPEES 250 AND SOLD AT RUPEES 150. A CUPBOARD BOUGHT FOR RUPEES 2,500 AND SOLD AT RUPEES 3,000. FIND PROFIT OR LOSS PERCENT.(ANSWER NEEDED IMMEDIATELY)

THANK YOU

What rate gives Rs 280 as interest on a sum of Rs 56000 in 2 years ?

IN AN EXAMINATION 40%OF THE STUDENTS FAILED IN MATHS,30% FAILED IN ENGLISH AND 10% FAILED IN BOTH . FIND THE PERCENTAGE OF STUDENTS WHO PASSED IN BOTH THE SUBJECTS ---------------------

1-->Ramesh lent out Rs.8000 for 3years at 12% p.a . How much did he gain or loose ?

2--> A certain sum of money is being doubled when rate of interest is equal to number of years. Find the rate f interest

3-->Prove that the bisector of the vertical angle of an isosceles triangle bisects the base at right angle

4--> If circumference of a circle is 3085cm then find the radius and area of the circle. ( pi=22/7)

5--> A circular garden is surrounded by a road of width 7cm. If the garden is having diameter 14m. Then find the area of the road

PUSHPA RETURNED A SUM OF rS.4800.00 AGAINST SOME LOAN AT AN INTEREST OF 4% P.A. FOR A PERIOD OF 5 YEARS. FIND THE SUM BORROWED BY HER.

selling price of a toy car is Rs540.If the profit made by shopkeeper is 20%,what is the CP of the toy.

Ans int the textbook: CP+20/100 XCP = {

+1/5} CP. =6/5CP. 540 x 5/6 CP. 0r 450Rs.1This eg is done in the textbook.page169.Iam not getting how they got this 1.

Q: a man sold two radios at Rs.4800 each. On one he gains 20% and on the other he loses 20%. Find the gain or loss percent in the whole transaction. ( frm r.s aggarwal example 11) plz answer it fast

If a certain principal amounts to Rs 44000 at 5 percent p.a. over 2 years, how much will it amount to in 3 years at the same rate ?

Shikha deposited Rs 2000 in a bank which pays 6% simple intrest.She withdrew Rs 700 at the end of first year .What will be her balance after 3 years?

what percent of 1 day is 36 minutes?

A number increased by 20% gives 42. What is the number?

mathematicsfor class 8..... plz suggest books name except necert booksyep guyz.......

we need ' VEDIOS ' PLZ...

Sameer bought 1600 bananas at Rs 3.75 a dozen. He sold 900 of them at 2 for Rs1 and remaining at 5 for Rs2 . Find the Gain or Loss percent.Find the C.P and S.P and compare.

Find the C.P and S.P and compare.

Meeta saves Rs 400 from her salary. If this is 10% of her salary. What is her salary?

FIND THE WHOLE quontity if%5% of it is 6005% of it is 600In which type of questions unitary method can help?

My mother says, in her childhood petrol was Re 1 a litre. It is Rs 52 per litre today. By what Percentage has the price gone up?

Dear Sir,

Pls help me solve his simple interest problem.

Divide 3600 into two parts such that if one part be lend at 9% per annum and other part at 10% per annum the total annual income is Rs.333/-

Apprecaite your response.

A man sells an article at a gain of 5%. If he had sold it at Rs. 63 less, he would have lost 2%.Find the cost of the article.

By selling an article for rs 1470, a man gains 1/6th of its cost price. Find its cost price.

by selling a jug for rs. 144 , a men loses 1/7 of his outlay . if it is sold for 189, what is the gain percent.

a) simple interest

b)rate of interest

what is 1% of 1 hour ?

11 oranges are bought for Rs. 10 and 10 oranges are sold for Rs. 11. The gain (or) loss percent is

caustic soda cantains sodium ,oxygen & hydrogen in the ratio 23:16:1 find the %OF OXYGEN IN CAUSTIC SODA WHAT WEIGHT OF CAUSTIC SODA WILL CANTAIN 10g OF HYDROGEN

Fabina borrows Rs 12,500 at 12% per annum for 3 years at simple interest and Radha borrows the same amount for the same time period at 10% per annum, compounded annually. Who pays more interest and by how much?

90% ofall students passeed in Hindi, 85% in Maths and 150 students passed in both. Find the total number of students in the school.

draw a rough sketch of two triangles such that they have five pairs of congruent parts but still the triangles are not congruent?

in the ratio 7/8 , if the consequent is 40, what is the antecedent?

extra questions for comparing quantities

pls answer me fast.with method