Charlie, Bryan and Adam have some stickers in the ratio of 3 : 2 : 8.
Charlie and Bryan have a total of 100 stickers.
- How many stickers does Charlie have?
- How many stickers do Charlie and Adam have?
- How many more stickers does Charlie have than Bryan?
(a)
Number of stickers that Charlie has = 3 u
Number of stickers that Bryan has = 2 u
Number of stickers that Adam has = 8 u
Number of stickers Charlie and Bryan have
= 3 u + 2 u
= 5 u
5 u = 100
1 u = 100 ÷ 5 = 20
Number of stickers that Charlie has
= 3 u
= 3 x 20
= 60
(b)
Number of stickers that Charlie and Adam have
= 3 u + 8 u
= 11 u
= 11 x 20
= 220
(c)
Number of more stickers that Charlie has than Bryan
= 3 u - 2 u
= 1 u
= 1 x 20
= 20
Answer(s): (a) 60; (b) 220; (c) 20