3 cousins share some stickers.
Charlie has 90 more than Adam.
Adam has 3 times as many as Bryan.
Charlie and Adam have 700 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 = 3 u
Number of stickers that Charlie has = 3 u + 90
Number of stickers that Charlie and Adam have is 700 more than Bryan.
Number
of stickers that Charlie and Adam have = 1 u + 700 3 u + 90 + 3 u = 1 u + 700 6 u - 1 u = 700 - 90 5 u = 610
1 u = 610 ÷ 5 = 122 (a)
Number of stickers that Adam has
= 3 x 122
= 366
(b)
Number of stickers that Charlie has
= 3 u + 90
= 3 × 122 + 90
= 366 + 90
= 456
(c)
Number of stickers that Charlie and Bryan have
= 3 u + 90 + 1 u
= 456 + 122
= 578
Answer(s): (a) 366; (b) 456; (c) 578