Adam buys some stickers for his friends.
If he gives each of them 8 stickers, he needs another 4.
If he gives each of them 12 stickers, he needs another 16.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 16 - 4
= 12
Small difference
= 12 - 8
= 4
Number of friends that Adam gives to
= 12 ÷ 4
= 3
(b)
Number of stickers that Adam buys
= 3 x 8 - 4
= 24 - 4
= 20
Answer(s): (a) 3; (b) 20