Permutation and CombinationHard
Question
The number of ways27 in which 20 volunteers can be divided into groups of 4,7 and 9 persons is-
Options
A.16C7 × 13C2
B.20C7 × 11C4
C.20C4 × 16C7
D.20C9 × 13C9
More Permutation and Combination Questions
The number of words that can be formed by using the letters of the word ′MATHEMATICS′ that start as well as ...Number of numbers greater than a million and divisible by 5 which can be formed by using only the digits 1, 2, 1, 2, 0, ...How many words can be formed from the letters of the word ′BHOPAL′ -...How many numbers of 4 digits can be formed from the digits 1,2,3,4,5,6 (repetition is not allowed)...Let g(x) = 2f(x/2) + f(1 - x) and f″(x) < 0 in 0 ≤ x ≤ 1 then g(x)...