3 brothers share some stickers.
Adam has 90 more than Charlie.
Charlie has 3 times as many as Bryan.
Adam and Charlie have 800 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 = 3 u
Number of stickers that Adam has = 3 u + 90
Number of stickers that Adam and Charlie have is 800 more than Bryan.
Number
of stickers that Adam and Charlie have = 1 u + 800 3 u + 90 + 3 u = 1 u + 800 6 u - 1 u = 800 - 90 5 u = 710
1 u = 710 ÷ 5 = 142 (a)
Number of stickers that Charlie has
= 3 x 142
= 426
(b)
Number of stickers that Adam has
= 3 u + 90
= 3 × 142 + 90
= 426 + 90
= 516
(c)
Number of stickers that Adam and Bryan have
= 3 u + 90 + 1 u
= 516 + 142
= 658
Answer(s): (a) 426; (b) 516; (c) 658