3 cousins share some stickers.
Charlie has 10 more than Bryan.
Bryan has 2 times as many as Adam.
Charlie and Bryan have 700 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 + 10
Number of stickers that Charlie and Bryan have is 700 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 700 2 u + 10 + 2 u = 1 u + 700 4 u - 1 u = 700 - 10 3 u = 690
1 u = 690 ÷ 3 = 230 (a)
Number of stickers that Bryan has
= 2 x 230
= 460
(b)
Number of stickers that Charlie has
= 2 u + 10
= 2 × 230 + 10
= 460 + 10
= 470
(c)
Number of stickers that Charlie and Adam have
= 2 u + 10 + 1 u
= 470 + 230
= 700
Answer(s): (a) 460; (b) 470; (c) 700