A bag contains four one-rupee coins, two twenty-five paisa coins, and five ten-paisa coins. In how many ways can an amount, not less than Rs. 1 be taken out from the bag? (Consider coins of the same denominations to be identical.) a. `71` b. `72` c. `73` d. `80`

A box contains one rupee, fifty paise and twenty five paise coins. The total value of coins is RS (a+b+c)x. The ratio of their number is a:2b:4c respectively. Find the number of respective coins.

In how many different ways ten 10 paise and five 5- paise coins can be arranged in a row so that two 5- paise coins are not together ?

The total number of ways of selecting six coins out of 20 one-rupee coins, 10 fifty-paisa coins, and 7 twenty-five paisa coins is: (a.) 28 (b.) 56 (c.) ^37 C_6 (d.) none of these

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.

In how many ways can a person contribute to a charitable fund out of 1 ten - rupee , 1 five - rupee , 1 two - rupee and 1 one - rupee notes ?

In how many ways can a person contribute to a charitabe fund out of 10 ten - rupee notes , 5 five -rupee notes, 2 two -rupee notes and 1 one - rupee note ?

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

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?

A bag contains 20 coins. If the probability that the bag contains exactly 4 biased coin is 1/3 and that of exactly 5 biased coin is 2/3 , then the probability that all the biased coin are sorted out from bag is exactly 10 draws is a. 5/(10)(.^(16)C_6)/(.^(20)C_9)+1/(11)(.^(15)C_5)/(.^(20)C_9) b. 2/(33)[(.^(16)C_6+5 .^(15)C_5)/(.^(20)C_9)] c. 5/(33)(.^(16)C_7)/(.^(20)C_9)+1/(11)(.^(15)C_6)/(.^(20)C_9) d. none of these

A fair coin is tossed four times, and a person win Re 1 for each head and lose Rs 1.50 for each tail that turns up. From the sample space calculate how many different amounts of money you can have after four tosed once. Find the probability of getting.