Q.
The total number of ways of dividing mn distinct objects into n equal groups is
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
(mn)!(m!)n(n!)
b
(mn)!(n!)m(m!)
c
(mn)!m!n!
d
none of these
answer is A.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
As groups are indistinguishable, the number of ways=1n! mnCm mn−mCm… mCm=1n!(mn)!m!(mn−m)!(mn−m)!m!(mn−2m)!⋯m!m!0!=1n!(mn)!(m!)n
Watch 3-min video & get full concept clarity