3 cousins share some stickers.
Charlie has 90 more than Bryan.
Bryan has 5 times as many as Adam.
Charlie and Bryan have 900 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 + 90
Number of stickers that Charlie and Bryan have is 900 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 900 5 u + 90 + 5 u = 1 u + 900 10 u - 1 u = 900 - 90 9 u = 810
1 u = 810 ÷ 9 = 90 (a)
Number of stickers that Bryan has
= 5 x 90
= 450
(b)
Number of stickers that Charlie has
= 5 u + 90
= 5 × 90 + 90
= 450 + 90
= 540
(c)
Number of stickers that Charlie and Adam have
= 5 u + 90 + 1 u
= 540 + 90
= 630
Answer(s): (a) 450; (b) 540; (c) 630