Question

The is 4 packs of sweets, a woman feeds one cat 1/6 of a pack of each day and feeds the other 1/5 of a pack each day, how many days will the treats last?

Answer 1

1/6 + 1/5 = 11/30
4 / (11/30) = 4 * 30/11 = 120/11
or, almost 11 days