3 buddies share some stickers.
Charlie has 30 more than Adam.
Adam has 4 times as many as Bryan.
Charlie and Adam have 100 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 = 4 u
Number of stickers that Charlie has = 4 u + 30
Number of stickers that Charlie and Adam have is 100 more than Bryan.
Number
of stickers that Charlie and Adam have = 1 u + 100 4 u + 30 + 4 u = 1 u + 100 8 u - 1 u = 100 - 30 7 u = 70
1 u = 70 ÷ 7 = 10 (a)
Number of stickers that Adam has
= 4 x 10
= 40
(b)
Number of stickers that Charlie has
= 4 u + 30
= 4 × 10 + 30
= 40 + 30
= 70
(c)
Number of stickers that Charlie and Bryan have
= 4 u + 30 + 1 u
= 70 + 10
= 80
Answer(s): (a) 40; (b) 70; (c) 80