Permutation and CombinationHard
Question
N = 22 . 33 . 54 . 7, then -
Options
A.Number of proper divisors of N(excluding 1 & N) is 118
B.Number of proper divisors of N(excluding 1 & N) is 120
C.Number of positive integral solutions of xy = N is 60
D.Number of positive integral solutions of xy = N is 120
More Permutation and Combination Questions
For what value of r, nPr = 720 and nCr = 120 ?...Taking three same and one different letters from the letters of the word ′PROPORTION′, the number of words w...The number of words from the letters of the word ′INSTITUTION′ when first two letters are N-...The number of ways in which 6 red roses and 3 white roses (all roses different) can form a garland so that all the white...If P(n, n) denotes the number of permutations of n different things taken all at a time then P (n, n) is also identical ...