If n is the number of irrational terms in the expansion of (3^ 1/4 +5^ 1/8 )^ 60 , then (n–1) is divisible by...

Question

If n is the number of irrational terms in the expansion of (3^ 1/4 +5^ 1/8 )^ 60 , then (n–1) is divisible by :

Accepted Answer

(D)

JEE Main 2021 Mathematics question