3 children have a total of 1700 stickers.
Adam has 2 times as many stickers as Bryan.
Charlie has 300 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 = 2 u = 2 u
Number of stickers that Charlie has = 1 u + 300
Total number of stickers
= 1 u + 2 u + 1 u + 300
= 4 u + 300
4 u + 300 = 1700
4 u = 1700 - 300
4 u = 1400
1 u = 1400 ÷ 4 = 350
Number of stickers that Adam and Bryan have
= 2 u + 1 u
= 3 u
= 3 x 350
= 1050
(b)
Number of stickers that Bryan has less than Adam
= 2 u - 1u
= 1 u
= 1 x 350
= 350
(c)
Number of stickers that Bryan has less than Adam and Charlie
= (2 u + 1 u + 300) - 1 u
= 2 u + 300
= 2 x 350 + 300
= 700 + 300
= 1000
Answer(s); (a) 1050; (b) 350; (c) 1000