3 buddies share some stickers.
Bryan has 90 more than Charlie.
Charlie has 3 times as many as Adam.
Bryan and Charlie have 900 more than Adam.
- How many stickers does Charlie have?
- How many stickers does Bryan have?
- How many stickers do Bryan and Adam have?
Choose the person with least stickers to be 1 u.
Number of stickers that Adam has = 1 u
Number of stickers that Charlie has = 3 u
Number of stickers that Bryan has = 3 u + 90
Number of stickers that Bryan and Charlie have is 900 more than Adam.
Number
of stickers that Bryan and Charlie have = 1 u + 900 3 u + 90 + 3 u = 1 u + 900 6 u - 1 u = 900 - 90 5 u = 810
1 u = 810 ÷ 5 = 162 (a)
Number of stickers that Charlie has
= 3 x 162
= 486
(b)
Number of stickers that Bryan has
= 3 u + 90
= 3 × 162 + 90
= 486 + 90
= 576
(c)
Number of stickers that Bryan and Adam have
= 3 u + 90 + 1 u
= 576 + 162
= 738
Answer(s): (a) 486; (b) 576; (c) 738