3 cousins share some stickers.
Adam has 90 more than Charlie.
Charlie has 3 times as many as Bryan.
Adam and Charlie have 600 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 600 more than Bryan.
Number
of stickers that Adam and Charlie have = 1 u + 600 3 u + 90 + 3 u = 1 u + 600 6 u - 1 u = 600 - 90 5 u = 510
1 u = 510 ÷ 5 = 102 (a)
Number of stickers that Charlie has
= 3 x 102
= 306
(b)
Number of stickers that Adam has
= 3 u + 90
= 3 × 102 + 90
= 306 + 90
= 396
(c)
Number of stickers that Adam and Bryan have
= 3 u + 90 + 1 u
= 396 + 102
= 498
Answer(s): (a) 306; (b) 396; (c) 498