Rahul owes Rs `X` and gives a Rs 50 note in payment. He receives the following change: `3X` fifty-paise coins, 14 ten-paise coins and `4X` five-paise coins. `X` is equal to: (a) 12 (b) 16 (c) 18 (d) 22

How many different sums can be formed with the following coins , a rupee a fifty paise , a twenty five paise , a ten paise , a five paise

A total of 324 coins of 20 paise and 25 paise make a sum of Rs 71. The number of 25-paise coins is (a) 120 (b) 124 (c) 144 (d) 200

IF a coin is tossed twice and X is the number of tails, then E(X)= (a) 0 (b) 1 (c) 2 (d) 3

If sqrt(18xx14xx x)=84, then x equals (a)22 (b) 24(c)28 (d) 32

In a box,there are a certain number of coins which amount to Rs 25. There are 2 -rupee coins,50 -paise coins and 25 -paise coins.If there are at least one 2 -rupee coin,two 50 - paise coins and two 25 -paise coins,then what could be the minimum number of coins in the box? (a) 12 (b) 14(c) 16(d) 18

In how many ways can a person having 3 coins of 25 paise,4 coins of 50 paise and 2coins of 1 rupee give none or some coins to a beggar?

Seeta has Rs 9 in fifty –paise and twenty five-paise coins. She has twice as many twenty=five paise coins as the she has fifty-paise coins. How coins of each kind does she have?

Seeta has Rs 9 in fifty –paise and twenty five-paise coins. She has twice as many twenty=five paise coins as the she has fifty-paise coins. How coins of each kind does she have?

Maya has the equal number of Rs. 2 and 50 paise coins. The total value of the coins is Rs. 70. If she spent five 50 paise coins, how many 50 paise coins did she have left?