NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Krisha 💫
Subject: Maths
, asked on 16/1/18
No.49 with method
Q.49. If
P
D
¯
=
13
27
, then P(D) = ............ .
A.
27
13
B.
14
27
C.
27
14
D.
13
27
Answer
3
Jeevan Akhil
Subject: Maths
, asked on 16/1/18
Find the probability that a leap year selected at random will contain 53 Sundays and 53 Mondays
Answer
2
Son Ser
Subject: Maths
, asked on 15/1/18
Q. A man speakes truth 3 times out of 5 times. He throws a die and says that he got a six. What is the probability that he is saying the truth of getting six?
Answer
2
Lokesh Gupta
Subject: Maths
, asked on 14/1/18
Class 10 maths all formulas.ncert
Answer
1
Champ Jee
Subject: Maths
, asked on 11/1/18
From a deck of 52 cards some cards are mussing. If tge probability of drawing red card is 2/3 and drawing a black card from the deck is 1/3. Find the number of missing cards.
Answer
5
Gourav Dey
Subject: Maths
, asked on 5/1/18
A piggy bank contains hundred 50p coins, fifty Rs 1 coins, twenty Rs 2 coins and ten Rs 5 coins. If it is equally likely that one of the coins will fall out when the piggy bank is turned upside down, find the probability that the coin (i) will be a 50p coin (ii) will not be a Rs 5 coin (iii) will be Rs 2 coin (iv) will not be Rs 1 coin.
Answer
1
Ayan
Subject: Maths
, asked on 4/1/18
Q.29 A bag contains 20 silver balls and x iron balls . If one ball is drawn from the bag . What is the probability that it is (i) silver (ii) iron ? If the probability of drawing the silver balls is 1/3 times the probability iron balls, Determine the value x.
Answer
4
Ms Eccentric
Subject: Maths
, asked on 3/1/18
If a die is rolled twice, find the probability of getting an even number in the first time or a total of 8.
Answer
2
Naman Mathur
Subject: Maths
, asked on 3/1/18
In a Deck of cards find the probability of spade or a red card
Answer
3
Ayan
Subject: Maths
, asked on 3/1/18
Solve this:
Q28. The angle of elevation of a jet fighter plane from a point lying on the ground is 60°. After a flight of 15 seconds, the angle of elevation changes to 30°. If the jet is flying at a speed of 720 km/h, find the constant height at which it is flying. (Use
3
= 1.732).
Q29. A bag contains 20 silver balls and x iron balls. If one ball is drawn from the bag, what is the probability that is (i) silver ? (ii) iron ?
If the probability of drawing the silver ball is
1
3
times the probability of drawing iron balls, determine the value of x.
Answer
1
Ishpreet Singh
Subject: Maths
, asked on 2/1/18
What is spade
Answer
3
Naman
Subject: Maths
, asked on 27/12/17
there are 100 students in a class out of them there are 20 girls and 30 boys. girls wears white socks and boys wears red so how many pairs of white socks are there of girls ?
Answer
4
Manthra Bhaskar 💙🖤🖤ðŸ...
Subject: Maths
, asked on 25/12/17
a card is drawn from a deck of 52 cards. the event E is that it is not a queen of black color. What is the number of favorable outcomes
Answer
1
Rajesh Kumawat
Subject: Maths
, asked on 22/12/17
A box contains 24 balls of which some are yellow in colour. If 12 more yellow balls are put in the box and a yellow ball is drawn at random, the probability of drawing a yellow ball doubles that what it was before. Find the number ofyellow ball in the box.
Answer
1
Murali Krishna
Subject: Maths
, asked on 22/12/17
There is a box withs cards numbered 3,4,5,6.37
If card is picked up
What is the probability of getting a card divisible by 3 and 4
Answer
3
Prev
3
4
5
6
7
Next
What are you looking for?
Q.49. If , then P(D) = ............ .
A.
B.
C.
D.
Q. A man speakes truth 3 times out of 5 times. He throws a die and says that he got a six. What is the probability that he is saying the truth of getting six?
Q28. The angle of elevation of a jet fighter plane from a point lying on the ground is 60°. After a flight of 15 seconds, the angle of elevation changes to 30°. If the jet is flying at a speed of 720 km/h, find the constant height at which it is flying. (Use = 1.732).
Q29. A bag contains 20 silver balls and x iron balls. If one ball is drawn from the bag, what is the probability that is (i) silver ? (ii) iron ?
If the probability of drawing the silver ball is times the probability of drawing iron balls, determine the value of x.
If card is picked up
What is the probability of getting a card divisible by 3 and 4