3 children have 1800 stickers.
Charlie has 300 more than Adam
but 300 less than Bryan.
- How many stickers does Adam have?
- How many stickers does Charlie have?
- How many stickers does Bryan have?
Choose the person with least stickers to be 1 u.
Number of stickers that Adam has = 1 u
Number of stickers that Charlie has = 1 u + 300
Number of stickers that Bryan has = 1 u + 300 + 300 = 1 u + 600
Total number of stickers
= 1 u + 1 u + 300 + 1 u + 600
= 3 u + 900
3 u + 900 = 1800
3 u = 1800 - 900
3 u = 900
1 u = 900 ÷ 3 = 300
(a)
Number of stickers that Adam has
= 1 u
= 300
(b)
Number of stickers that Charlie has
= 1 u + 300
= 300 + 300
= 600
(c)
Number of stickers that Bryan has
= 1 u + 600
= 300 + 600
= 900
Answer(s): (a) 300; (b) 600; (c) 900
