3 boys share some stickers.
Adam has 60 more than Charlie.
Charlie has 4 times as many as Bryan.
Adam and Charlie have 900 more than Bryan.
- How many stickers does Charlie have?
- How many stickers does Adam have?
- How many stickers do Adam 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 Charlie has = 4 u
Number of stickers that Adam has = 4 u + 60
Number of stickers that Adam and Charlie have is 900 more than Bryan.
Number
of stickers that Adam and Charlie have = 1 u + 900 4 u + 60 + 4 u = 1 u + 900 8 u - 1 u = 900 - 60 7 u = 840
1 u = 840 ÷ 7 = 120 (a)
Number of stickers that Charlie has
= 4 x 120
= 480
(b)
Number of stickers that Adam has
= 4 u + 60
= 4 × 120 + 60
= 480 + 60
= 540
(c)
Number of stickers that Adam and Bryan have
= 4 u + 60 + 1 u
= 540 + 120
= 660
Answer(s): (a) 480; (b) 540; (c) 660