Adam buys some stickers for his friends.
If he gives each of them 10 stickers, he has 17 stickers left.
If he gives each of them 14 stickers, he has 5 stickers left.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 17 - 5
= 12
Small difference
= 14 - 10
= 4
Number of friends that Adam gives to
= 12 ÷ 4
= 3
(b)
Number of stickers that Adam buys
= 3 x 10 + 17
= 30 + 17
= 47
Answer(s): (a) 3; (b) 47