
Hi neha To find the maximum number of days in a single year we have to look out for an year with maximum number of prime factors. So, a few years between 50 and 100 with more than 3 prime factors are : 54,60,72,80,81,88,90 and 96. Since the number of months can be up to 12 and number of days can be up to 31,so on a careful look we find that the only the options 60 and 90 have the maximum days. CASE 1: 1960 2/30/60 3/20/60 4/15/60 5/12/60 6/10/60 10/6/60 12/5/60
CASE 2:1990 2/45/90(not possible) 3/30/90 5/18/90 6/15/90 9/10/90 10/9/90 Clearly,1960 is the answer. Hope i am clear
