Charlie, Bryan and Adam have some stickers in the ratio of 7 : 3 : 8.
Charlie and Bryan have a total of 800 stickers.
- How many stickers does Charlie have?
- How many stickers do Charlie and Adam have?
- How many less stickers does Bryan have than Charlie?
(a)
Number of stickers that Charlie has = 7 u
Number of stickers that Bryan has = 3 u
Number of stickers that Adam has = 8 u
Number of stickers Charlie and Bryan have
= 7 u + 3 u
= 10 u
10 u = 800
1 u = 800 ÷ 10 = 80
Number of stickers that Charlie has
= 7 u
= 7 x 80
= 560
(b)
Number of stickers that Charlie and Adam have
= 7 u + 8 u
= 15 u
= 15 x 80
= 1200
(c)
Number of less stickers that Bryan has than Charlie
= 7 u - 3 u
= 4 u
= 4 x 80
= 320
Answer(s): (a) 560; (b) 1200; (c) 320