3 boys share some stickers.
Bryan has 10 more than Charlie.
Charlie has 3 times as many as Adam.
Bryan and Charlie have 400 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 + 10
Number of stickers that Bryan and Charlie have is 400 more than Adam.
Number
of stickers that Bryan and Charlie have = 1 u + 400 3 u + 10 + 3 u = 1 u + 400 6 u - 1 u = 400 - 10 5 u = 390
1 u = 390 ÷ 5 = 78 (a)
Number of stickers that Charlie has
= 3 x 78
= 234
(b)
Number of stickers that Bryan has
= 3 u + 10
= 3 × 78 + 10
= 234 + 10
= 244
(c)
Number of stickers that Bryan and Adam have
= 3 u + 10 + 1 u
= 244 + 78
= 322
Answer(s): (a) 234; (b) 244; (c) 322