Question

A Liberian sorts 350 books at a constant role. After a days, the librarian still has 150 books to son, How much time does it take to sort the books from start to

finish

Answer 1

Answer: 7 days

Explanation:

Books already sorted;

= 350 - 150

= 200

Time taken = 4 days

Rate = 200/4

= 50 books a day

150 books remain;

= 150/50

= 3 days

Total time = 4 + 3

= 7 days