Adam buys some stickers for his friends.
If he gives each of them 2 stickers, he has 7 stickers left.
If he gives each of them 5 stickers, he needs another 17.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 7 + 17
= 24
Small difference
= 5 - 2
= 3
Number of friends that Adam gives to
= 24 ÷ 3
= 8
(b)
Number of stickers that Adam buys
= 8 x 2 + 7
= 16 + 7
= 23
Answer(s): (a) 8; (b) 23