3 children have 2000 stickers.
Bryan has 800 more than Charlie
but 100 less than Adam.
- How many stickers does Charlie have?
- How many stickers does Bryan have?
- How many stickers does Adam have?
Choose the person with least stickers to be 1 u.
Number of stickers that Charlie has = 1 u
Number of stickers that Bryan has = 1 u + 800
Number of stickers that Adam has = 1 u + 800 + 100 = 1 u + 900
Total number of stickers
= 1 u + 1 u + 800 + 1 u + 900
= 3 u + 1700
3 u + 1700 = 2000
3 u = 2000 - 1700
3 u = 300
1 u = 300 ÷ 3 = 100
(a)
Number of stickers that Charlie has
= 1 u
= 100
(b)
Number of stickers that Bryan has
= 1 u + 800
= 100 + 800
= 900
(c)
Number of stickers that Adam has
= 1 u + 900
= 100 + 900
= 1000
Answer(s): (a) 100; (b) 900; (c) 1000
