3 boys share some stickers.
Adam has 30 more than Bryan.
Bryan has 2 times as many as Charlie.
Adam and Bryan have 300 more than Charlie.
- How many stickers does Bryan have?
- How many stickers does Adam have?
- How many stickers do Adam and Charlie have?
Choose the person with least stickers to be 1 u.
Number of stickers that Charlie has = 1 u
Number of stickers that Bryan has = 2 u
Number of stickers that Adam has = 2 u + 30
Number of stickers that Adam and Bryan have is 300 more than Charlie.
Number
of stickers that Adam and Bryan have = 1 u + 300 2 u + 30 + 2 u = 1 u + 300 4 u - 1 u = 300 - 30 3 u = 270
1 u = 270 ÷ 3 = 90 (a)
Number of stickers that Bryan has
= 2 x 90
= 180
(b)
Number of stickers that Adam has
= 2 u + 30
= 2 × 90 + 30
= 180 + 30
= 210
(c)
Number of stickers that Adam and Charlie have
= 2 u + 30 + 1 u
= 210 + 90
= 300
Answer(s): (a) 180; (b) 210; (c) 300