Permutation and CombinationHard
Question
The number of ways in which the number 27720 can be split into two factors which are co-primes, is:
Options
A.15
B.16
C.25
D.49
Solution
23 32 . 5. 11
Hence number of co-prime factor
25-1 = 24 = 16
Create a free account to view solution
View Solution FreeMore Permutation and Combination Questions
Number of divisors of the form 4n + 2 (n ≥ 0) of the integer 240 is -...The number of words that can be formed by using the letters of the word ′MATHEMATICS′ that start as well as ...Number of ways of placing 5 different balls in 3 different boxes (no box remains empty), is ---...The sum of numbers formed by the digits 1,3,5,7,9 is-...The number of 4-letter words, with or without meaning, each consisting of two vowels and two consonants that can be form...