3 cousins share some stickers.
Charlie has 90 more than Bryan.
Bryan has 3 times as many as Adam.
Charlie and Bryan have 400 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 = 3 u
Number of stickers that Charlie has = 3 u + 90
Number of stickers that Charlie and Bryan have is 400 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 400 3 u + 90 + 3 u = 1 u + 400 6 u - 1 u = 400 - 90 5 u = 310
1 u = 310 ÷ 5 = 62 (a)
Number of stickers that Bryan has
= 3 x 62
= 186
(b)
Number of stickers that Charlie has
= 3 u + 90
= 3 × 62 + 90
= 186 + 90
= 276
(c)
Number of stickers that Charlie and Adam have
= 3 u + 90 + 1 u
= 276 + 62
= 338
Answer(s): (a) 186; (b) 276; (c) 338