Bryan, Charlie and Adam have some stickers in the ratio of 7 : 3 : 3.
Bryan and Charlie have a total of 400 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 = 3 u
Number of stickers Bryan and Charlie have
= 7 u + 3 u
= 10 u
10 u = 400
1 u = 400 ÷ 10 = 40
Number of stickers that Bryan has
= 7 u
= 7 x 40
= 280
(b)
Number of stickers that Bryan and Adam have
= 7 u + 3 u
= 10 u
= 10 x 40
= 400
(c)
Number of more stickers that Bryan has than Charlie
= 7 u - 3 u
= 4 u
= 4 x 40
= 160
Answer(s): (a) 280; (b) 400; (c) 160