If m rupee coins and n ten paise coins are placed in a line, then the probability that the extreme coins are ten paise coins, is

If 10 coins of Rs. 10, five coins of Rs. 5 are to be placed in a line, then the probability that the extreme coins are of Rs. 5 is

Four one-rupee coins and three 50 paise coins are placed at random in line. Prove that the probability of the extreme coins being both 50 paise is (1)/(7) .

A purse contains three 10 paise, three 50 paise and ten 1 rupee coins. If three coins are selected at random, then the probability that the total amount is 2 rupee is

A purse contains three 10 paise, three 50 paise and ten 1 rupee coins. If three coins are selected at random, then the probability that the total amount is 2 rupee is

In a bag there are 5 half rupee coins,4 twenty paise coins and 4 ten paise coins.If two coins are drawn from the bag at random then the probability that the amount drawn to be minimum is

A box contains 2 fifty paise coins, 5 twenty five paise coins and a certain fixed number n (ge2) of ten and five paise coins. Five coins are taken out of the box at random. Find the probability that the total value of these 5 coins is less than one rupee and fifty paise.

In a bag there are 5 half rupee coins, 4 twenty paise coins and 4 ten paise coins. If two coins are drawn from the bag at random then the probability that the amount drawn to be minimum is

If three one rupee coins can be placed around a ten-paise coin such that each one rupee coin touches the ten paise coin as well as the other two one-rupee coins,the ratio of the radii of the one rupee and ten paise coin is:

A box contains two 50 paise coins, five 25 paise coins and a certain fixed number N(geq2) of 10 and 5-paise coins. Five coins are taken out of the box at random. Find the probability that the total value of these 5 coins is less than 1 rupee and 50 paise.

A box contains two 50 paise coins, five 25 paise coins and a certain fixed number N(geq2) of 10 and 5-paise coins. Five coins are taken out of the box at random. Find the probability that the total value of these 5 coins is less than 1 rupee and 50 paise.