3 children have 1900 stickers.
Bryan has 300 more than Charlie
but 700 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 + 300
Number of stickers that Adam has = 1 u + 300 + 700 = 1 u + 1000
Total number of stickers
= 1 u + 1 u + 300 + 1 u + 1000
= 3 u + 1300
3 u + 1300 = 1900
3 u = 1900 - 1300
3 u = 600
1 u = 600 ÷ 3 = 200
(a)
Number of stickers that Charlie has
= 1 u
= 200
(b)
Number of stickers that Bryan has
= 1 u + 300
= 200 + 300
= 500
(c)
Number of stickers that Adam has
= 1 u + 1000
= 200 + 1000
= 1200
Answer(s): (a) 200; (b) 500; (c) 1200
