Permutation and CombinationEasy
Question
The number of ways in which at least one coin can be selected from 3 coins of one rupee, 4 coins of fifty paise, 5 coins of twenty paise and 6 coins of ten paise is -
Options
A.639
B.840
C.839
D.None of these
More Permutation and Combination Questions
The sum of all numbers greater than 1000 formed by using the digits 1,3,5,7 no digit is repeated in any number is-...If function f(x) = , (fof) (√4)...In a conference 10 speakers are present. If S1 wants to speak before S2 & S2 wants to speak after S3, then the number of...In a library there are p copies of each n different books. The number of ways of selecting of one or more books from the...If nPn= 720, then n equals-...