Question 1201374
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(a) Each boy bought the same number of sheets of stickers.  Ben bought 17-8 = 9 more small sheets than Andy.  The difference between the number of stickers on a large sheet and a small sheet is 60-25 = 35. So Ben has 9*35 = 315 stickers fewer than Andy.<br>
ANSWER: 315<br>
(b) Before Ben gave away all his large sheets, he had 315 stickers fewer than Andy; afterwards, he had 735 fewer.  So the large sheets he gave away had a total of 735-315 = 420 stickers.  Since each large sheet has 60 stickers, the number of sheets of large stickers he gave away was 420/60 = 7.<br>
Then, since Ben bought 17 small sheets of stickers, the total number of sheets he bought was 7+17 = 24.<br>
And we know both boys bought the same number of sheets of stickers, so....<br>
ANSWER: Each boy bought 24 sheets of stickers<br>