3 cousins share some stickers.
Charlie has 50 more than Adam.
Adam has 3 times as many as Bryan.
Charlie and Adam have 400 more than Bryan.
- How many stickers does Adam have?
- How many stickers does Charlie have?
- How many stickers do Charlie and Bryan have?
Choose the person with least stickers to be 1 u.
Number of stickers that Bryan has = 1 u
Number of stickers that Adam has = 3 u
Number of stickers that Charlie has = 3 u + 50
Number of stickers that Charlie and Adam have is 400 more than Bryan.
Number
of stickers that Charlie and Adam have = 1 u + 400 3 u + 50 + 3 u = 1 u + 400 6 u - 1 u = 400 - 50 5 u = 350
1 u = 350 ÷ 5 = 70 (a)
Number of stickers that Adam has
= 3 x 70
= 210
(b)
Number of stickers that Charlie has
= 3 u + 50
= 3 × 70 + 50
= 210 + 50
= 260
(c)
Number of stickers that Charlie and Bryan have
= 3 u + 50 + 1 u
= 260 + 70
= 330
Answer(s): (a) 210; (b) 260; (c) 330