3 brothers share some stickers.
Charlie has 40 more than Adam.
Adam has 5 times as many as Bryan.
Charlie and Adam have 400 more than Bryan.
- How many stickers does Adam have?
- How many stickers does Charlie have?
- How many stickers do Charlie and Bryan have?
Choose the person with least stickers to be 1 u.
Number of stickers that Bryan has = 1 u
Number of stickers that Adam has = 5 u
Number of stickers that Charlie has = 5 u + 40
Number of stickers that Charlie and Adam have is 400 more than Bryan.
Number
of stickers that Charlie and Adam have = 1 u + 400 5 u + 40 + 5 u = 1 u + 400 10 u - 1 u = 400 - 40 9 u = 360
1 u = 360 ÷ 9 = 40 (a)
Number of stickers that Adam has
= 5 x 40
= 200
(b)
Number of stickers that Charlie has
= 5 u + 40
= 5 × 40 + 40
= 200 + 40
= 240
(c)
Number of stickers that Charlie and Bryan have
= 5 u + 40 + 1 u
= 240 + 40
= 280
Answer(s): (a) 200; (b) 240; (c) 280