3 buddies share some stickers.
Bryan has 20 more than Adam.
Adam has 2 times as many as Charlie.
Bryan and Adam have 200 more than Charlie.
- How many stickers does Adam have?
- How many stickers does Bryan have?
- How many stickers do Bryan 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 Adam has = 2 u
Number of stickers that Bryan has = 2 u + 20
Number of stickers that Bryan and Adam have is 200 more than Charlie.
Number
of stickers that Bryan and Adam have = 1 u + 200 2 u + 20 + 2 u = 1 u + 200 4 u - 1 u = 200 - 20 3 u = 180
1 u = 180 ÷ 3 = 60 (a)
Number of stickers that Adam has
= 2 x 60
= 120
(b)
Number of stickers that Bryan has
= 2 u + 20
= 2 × 60 + 20
= 120 + 20
= 140
(c)
Number of stickers that Bryan and Charlie have
= 2 u + 20 + 1 u
= 140 + 60
= 200
Answer(s): (a) 120; (b) 140; (c) 200