3 cousins share some stickers.
Charlie has 20 more than Bryan.
Bryan has 5 times as many as Adam.
Charlie and Bryan have 200 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 = 5 u
Number of stickers that Charlie has = 5 u + 20
Number of stickers that Charlie and Bryan have is 200 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 200 5 u + 20 + 5 u = 1 u + 200 10 u - 1 u = 200 - 20 9 u = 180
1 u = 180 ÷ 9 = 20 (a)
Number of stickers that Bryan has
= 5 x 20
= 100
(b)
Number of stickers that Charlie has
= 5 u + 20
= 5 × 20 + 20
= 100 + 20
= 120
(c)
Number of stickers that Charlie and Adam have
= 5 u + 20 + 1 u
= 120 + 20
= 140
Answer(s): (a) 100; (b) 120; (c) 140