3 brothers share some stickers.
Adam has 70 more than Bryan.
Bryan has 2 times as many as Charlie.
Adam and Bryan have 700 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 + 70
Number of stickers that Adam and Bryan have is 700 more than Charlie.
Number
of stickers that Adam and Bryan have = 1 u + 700 2 u + 70 + 2 u = 1 u + 700 4 u - 1 u = 700 - 70 3 u = 630
1 u = 630 ÷ 3 = 210 (a)
Number of stickers that Bryan has
= 2 x 210
= 420
(b)
Number of stickers that Adam has
= 2 u + 70
= 2 × 210 + 70
= 420 + 70
= 490
(c)
Number of stickers that Adam and Charlie have
= 2 u + 70 + 1 u
= 490 + 210
= 700
Answer(s): (a) 420; (b) 490; (c) 700