3 cousins share some stickers.
Bryan has 40 more than Charlie.
Charlie has 3 times as many as Adam.
Bryan and Charlie have 800 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 + 40
Number of stickers that Bryan and Charlie have is 800 more than Adam.
Number
of stickers that Bryan and Charlie have = 1 u + 800 3 u + 40 + 3 u = 1 u + 800 6 u - 1 u = 800 - 40 5 u = 760
1 u = 760 ÷ 5 = 152 (a)
Number of stickers that Charlie has
= 3 x 152
= 456
(b)
Number of stickers that Bryan has
= 3 u + 40
= 3 × 152 + 40
= 456 + 40
= 496
(c)
Number of stickers that Bryan and Adam have
= 3 u + 40 + 1 u
= 496 + 152
= 648
Answer(s): (a) 456; (b) 496; (c) 648