Question

The bookshop received a shipment of identification books. 1/3 of them were bird books, 1/2 of the rest of the books

were about plants, and 1/4 of the remaining books were mammal books. The 12 books that were left were insect
books. How many books were in the shipment?

Answer 1

48

Explanation:

1/3+(1/2*2/3)+(1/4*1/3)=3/4

1-3/4=1/4

So 12 book were 1/4 of the shipment.

So 48 book sis total.