A bag contains a coin of value M and a number of other coins whose aggregate value is m. A person draws one at a time till he draws the coin M. find the value of his expression.

A bag contains 25 paise and 50 paise coins whose total value is Rs 30. If the number of 25 paise coins is four times that of 50 paise coins, find the number of each type of coins.

A bag contains 25 paise and 50 paise coins whose total value is Rs 30 . If the number of 25 paise coins is four times that of 50 paise coins, find the number of each type of coins.

From a bag containing 2 one rupee and 3 two rupee coins a person is allowed to draw 2 coins simultaneously,find the value of his expectation

A bag contains 25-paisa and 50-paisa coins whose total value is Rs30.If the number of 25-paisa coins is four times that of 50-paisa coins,find the number of each type of coins.

A bag contains 480 coins of 50p, 25p, 10p and the ratio of their value is 5: 3:1. How many coins of these three type?

In a bag, the number of one rupee coins is three times the number of two rupees coins. If the worth of the coins is Rs 120, find the number of 1 rupee coins.

A bag contains 12 two rupee coins, 8 one rupee coins, and 4 half rupee coins. If 3 coins are selected at random, then the probability that each coins is of different value is

A bag contain 378 coins, Rs. 1, 50P and 25P. The ratio of there value is 13:11: 7. Then find the number of 50 P coins.

A bag contains n+1 coins. If is known that one of these coins shows heads on both sides, whereas the other coins are fair. One coin is selected at random and tossed. If the probability that toss results in heads is 7/12, then find the value of ndot

A bag contains n+1 coins. It is known that one of these coins shows heads on both sides, whereas the other coins are fair. One coin is selected at random and tossed. If the probability that toss results in heads is 7/12, then find the value of ndot