3 brothers share some stickers.
Bryan has 70 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 + 70
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 + 70 + 3 u = 1 u + 400 6 u - 1 u = 400 - 70 5 u = 330
1 u = 330 ÷ 5 = 66 (a)
Number of stickers that Charlie has
= 3 x 66
= 198
(b)
Number of stickers that Bryan has
= 3 u + 70
= 3 × 66 + 70
= 198 + 70
= 268
(c)
Number of stickers that Bryan and Adam have
= 3 u + 70 + 1 u
= 268 + 66
= 334
Answer(s): (a) 198; (b) 268; (c) 334