Charlie, Adam and Bryan have some stickers in the ratio of 7 : 3 : 5.
Charlie and Adam have a total of 200 stickers.
- How many stickers does Charlie have?
- How many stickers do Charlie and Bryan have?
- How many more stickers does Charlie have than Adam?
(a)
Number of stickers that Charlie has = 7 u
Number of stickers that Adam has = 3 u
Number of stickers that Bryan has = 5 u
Number of stickers Charlie and Adam have
= 7 u + 3 u
= 10 u
10 u = 200
1 u = 200 ÷ 10 = 20
Number of stickers that Charlie has
= 7 u
= 7 x 20
= 140
(b)
Number of stickers that Charlie and Bryan have
= 7 u + 5 u
= 12 u
= 12 x 20
= 240
(c)
Number of more stickers that Charlie has than Adam
= 7 u - 3 u
= 4 u
= 4 x 20
= 80
Answer(s): (a) 140; (b) 240; (c) 80