Bryan, Charlie and Adam have some stickers in the ratio of 7 : 3 : 8.
Bryan and Charlie have a total of 100 stickers.
- How many stickers does Bryan have?
- How many stickers do Bryan and Adam have?
- How many more stickers does Bryan have than Charlie?
(a)
Number of stickers that Bryan has = 7 u
Number of stickers that Charlie has = 3 u
Number of stickers that Adam has = 8 u
Number of stickers Bryan and Charlie have
= 7 u + 3 u
= 10 u
10 u = 100
1 u = 100 ÷ 10 = 10
Number of stickers that Bryan has
= 7 u
= 7 x 10
= 70
(b)
Number of stickers that Bryan and Adam have
= 7 u + 8 u
= 15 u
= 15 x 10
= 150
(c)
Number of more stickers that Bryan has than Charlie
= 7 u - 3 u
= 4 u
= 4 x 10
= 40
Answer(s): (a) 70; (b) 150; (c) 40