In how many different ways can 3 persons A, B, C having 6 one-rupee coin 7 one-rupee coin, 8 one-rupee coin, respectively, donate 10 one-rupee coin collectively?

Two coins (a one rupee coin and a two rupee coin) are tossed once. Find a sample space.

Find the number oif different sums that can be formed with one rupee, one half rupee and one quarter rupee coins.

In how many ways can 16 rupees and 12 paise coins be arranged in a ine so that no two paise coins may occupy consective positions?

Find the probability of drawing a one-rupee coin from a purse with two compartments one of which contains 3 fifty-paise coins and 2 one-rupee coins and other contains 2 fifty-paise coins and 3 one-rupee coins.

The total number of ways in which a beggar can be given at least one rupee from four 25-paisa coins, three 50-paisa coins and 2 one-rupee coins, is:

In each of the following experiments specify appropriate sample space(i) A boy has a 1 rupee coin, a 2 rupee coin and a 5 rupee coin in his pocket. He takes out two coins out of his pocket, one after the other.(ii) A person is noting down the number of accidents along a busy highway during a year.

How many different amounts can be formed with one-one coin of Rs 1, Rs 2, Rs 5 and Rs 10?

Let a person have 3 coins of 25 paise, 4 coins of 50 paise and 2 coins of 1 rupee. Then inhow may ways can he give none or some coins to a beggar? Further find the number of ways so that (i) he gives at least one coin of one rupee. (ii) he gives at least one coin of each kind.

A coin is tossed 6. times In how many different ways can we obtain 4 heads and 2 tails?

8 Children are standing in a line outside a ticket counter at zoo. 4 of them have a 1 rupee coin each & the remaining four have a 2 rupee coin each. The entry ticket costs 1 rupee each. If all the arrangements of the 8 children are random, the probability that no child will have to wait for a change, if the cashier at the tickets window has no- change to start with is K . Then 15K is equal to