3 brothers share some stickers.
Charlie has 10 more than Bryan.
Bryan has 3 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 = 3 u
Number of stickers that Charlie has = 3 u + 10
Number of stickers that Charlie and Bryan have is 900 more than Adam.
Number
of stickers that Charlie and Bryan have = 1 u + 900 3 u + 10 + 3 u = 1 u + 900 6 u - 1 u = 900 - 10 5 u = 890
1 u = 890 ÷ 5 = 178 (a)
Number of stickers that Bryan has
= 3 x 178
= 534
(b)
Number of stickers that Charlie has
= 3 u + 10
= 3 × 178 + 10
= 534 + 10
= 544
(c)
Number of stickers that Charlie and Adam have
= 3 u + 10 + 1 u
= 544 + 178
= 722
Answer(s): (a) 534; (b) 544; (c) 722