3 boys share some stickers.
Charlie has 90 more than Bryan.
Bryan has 4 times as many as Adam.
Charlie and Bryan have 300 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 = 4 u
Number of stickers that Charlie has = 4 u + 90
Number of stickers that Charlie and Bryan have is 300 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 300 4 u + 90 + 4 u = 1 u + 300 8 u - 1 u = 300 - 90 7 u = 210
1 u = 210 ÷ 7 = 30 (a)
Number of stickers that Bryan has
= 4 x 30
= 120
(b)
Number of stickers that Charlie has
= 4 u + 90
= 4 × 30 + 90
= 120 + 90
= 210
(c)
Number of stickers that Charlie and Adam have
= 4 u + 90 + 1 u
= 210 + 30
= 240
Answer(s): (a) 120; (b) 210; (c) 240