Home
Class 12
MATHS
An urn contains 3 red balls and n white ...

An urn contains 3 red balls and `n` white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1/2 Mr. B. Draws one balls form the urn, notes its color and replaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5/8. The possible value of `n` is `9` b. `6` c. `5` d. 1

Promotional Banner

Similar Questions

Explore conceptually related problems

An urn contains 3 red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1/2 Mr. B. Draws one balls form the urn, notes its color and replaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5/8. The possible value of n is (a) 9 b. 6 c. 5 d. 1

An urn contains 3 red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1/2 Mr. B. Draws one balls form the urn, notes its color and replaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5/8. The possible value of n is (a) 9 b. 6 c. 5 d. 1

An urn contains three red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1//2. Mr.B draws one ball from the urn, notes its color and rplaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5//8. The value of n is ____.

An urn contains three red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1//2. Mr.B draws one ball from the urn, notes its color and rplaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5//8. The value of n is ____.

An urn contains three red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1//2. Mr.B draws one ball from the urn, notes its color and rplaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5//8. The value of n is ____.

An urn contains three red balls and n white balls. Mr. A draws two balls together from the urn. The probability that they have the same color is 1//2. Mr.B draws one ball from the urn, notes its color and rplaces it. He then draws a second ball from the urn and finds that both balls have the same color is 5//8. The value of n is ____.

An urn contains 8 red and 5 white balls. Three balls are drawn at random. Then, the probability that balls of both colors are drawn is:

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

An urn contains 8 red and 5 white balls. Three balls are drawn at random. Then the probability that balls of both colours are drawn is-