Question

72 books are packed in 4 cortons of the same size. How many cartons are required for 540 books?

Answer 1

Answer:

30 cartons

Explanation:

72=4 cartons

Hence

72/4=18 books per carton

Then for 540 books

540/18=30 cartons

Answer 2

Answer:

Explanation:

no.of books= 72

no. of cartons= 4

∴no.of cartons required for 540 books=(540x4)÷72= 30

30 cartons are required for 540 books

an easy way to remember what to do for this:

no.of books              no.of cartons

      72                                 4

      540                               ?

so, (540 x 4) ÷72 (cross multiplication)