Question

Rebecca wants to put 544 pennies in a coin collection book. the blue book fits 9 pennies per page. the red book fits 7 pennies per page. how many more pages would she need if she used the red book rather than the blue one?

Answer 1

If she uses the blue book then she will need,

544/9 ≈ 61 pages

If she uses the red book the she will need, 

544/7 ≈ 78 pages

So she will need 17 more pages if she uses the red book.

Hope this helps :)