Adam buys some stickers for his friends.
If he gives each of them 5 stickers, he needs another 3.
If he gives each of them 7 stickers, he needs another 19.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 19 - 3
= 16
Small difference
= 7 - 5
= 2
Number of friends that Adam gives to
= 16 ÷ 2
= 8
(b)
Number of stickers that Adam buys
= 8 x 5 - 3
= 40 - 3
= 37
Answer(s): (a) 8; (b) 37