3 children share some stickers.
Charlie has 80 more than Bryan.
Bryan has 2 times as many as Adam.
Charlie and Bryan have 800 more than Adam.
- How many stickers does Bryan have?
- How many stickers does Charlie have?
- How many stickers do Charlie and Adam have?
Choose the person with least stickers to be 1 u.
Number of stickers that Adam has = 1 u
Number of stickers that Bryan has = 2 u
Number of stickers that Charlie has = 2 u + 80
Number of stickers that Charlie and Bryan have is 800 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 800 2 u + 80 + 2 u = 1 u + 800 4 u - 1 u = 800 - 80 3 u = 720
1 u = 720 ÷ 3 = 240 (a)
Number of stickers that Bryan has
= 2 x 240
= 480
(b)
Number of stickers that Charlie has
= 2 u + 80
= 2 × 240 + 80
= 480 + 80
= 560
(c)
Number of stickers that Charlie and Adam have
= 2 u + 80 + 1 u
= 560 + 240
= 800
Answer(s): (a) 480; (b) 560; (c) 800