3 children have a total of 1100 stickers.
Adam has 4 times as many stickers as Bryan.
Charlie has 200 stickers more stickers than Bryan.
- How many stickers do Adam and Bryan have?
- How many stickers does Bryan have less than Adam?
- How many stickers does Bryan have less than Adam and Charlie?
(a)
Choose the person with least stickers to be 1 u.
Number of stickers that Bryan has = 1 u
Number of stickers that Adam has = 4 u = 4 u
Number of stickers that Charlie has = 1 u + 200
Total number of stickers
= 1 u + 4 u + 1 u + 200
= 6 u + 200
6 u + 200 = 1100
6 u = 1100 - 200
6 u = 900
1 u = 900 ÷ 6 = 150
Number of stickers that Adam and Bryan have
= 4 u + 1 u
= 5 u
= 5 x 150
= 750
(b)
Number of stickers that Bryan has less than Adam
= 4 u - 1u
= 3 u
= 3 x 150
= 450
(c)
Number of stickers that Bryan has less than Adam and Charlie
= (4 u + 1 u + 200) - 1 u
= 4 u + 200
= 4 x 150 + 200
= 600 + 200
= 800
Answer(s); (a) 750; (b) 450; (c) 800