Andy has twice as many stickers as Mark. Mark has 8 more stickers than Luis. They have a total of 112 stickers.
- How many stickers does Andy have?
- How many stickers does Luis have?
(a)
Number of stickers that Mark has = 1 u
Number of stickers that Luis has = 1 u - 8
Number of stickers that Andy has = 2 u
Total number of stickers
= 1 u + 1 u - 8 + 2 u
= 4 u - 8
4 u - 8 = 112
4 u = 112 + 8
4 u = 120
1 u = 120 ÷ 4 = 30
Number of stickers that Andy has
= 2 u
= 2 x 30
= 60
(b)
Number of stickers that Luis has
= 1 u - 8
= 30 - 8
= 22
Answer(s): (a) 60; (b) 22
