3 cousins share some stickers.
Bryan has 60 more than Adam.
Adam has 3 times as many as Charlie.
Bryan and Adam have 400 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 = 3 u
Number of stickers that Bryan has = 3 u + 60
Number of stickers that Bryan and Adam have is 400 more than Charlie.
Number
of stickers that Bryan and Adam have = 1 u + 400 3 u + 60 + 3 u = 1 u + 400 6 u - 1 u = 400 - 60 5 u = 340
1 u = 340 ÷ 5 = 68 (a)
Number of stickers that Adam has
= 3 x 68
= 204
(b)
Number of stickers that Bryan has
= 3 u + 60
= 3 × 68 + 60
= 204 + 60
= 264
(c)
Number of stickers that Bryan and Charlie have
= 3 u + 60 + 1 u
= 264 + 68
= 332
Answer(s): (a) 204; (b) 264; (c) 332