Bryan, Charlie and Adam have some stickers in the ratio of 7 : 2 : 4.
Bryan and Charlie have a total of 900 stickers.
- How many stickers does Bryan have?
- How many stickers do Bryan and Adam have?
- How many less stickers does Charlie have than Bryan?
(a)
Number of stickers that Bryan has = 7 u
Number of stickers that Charlie has = 2 u
Number of stickers that Adam has = 4 u
Number of stickers Bryan and Charlie have
= 7 u + 2 u
= 9 u
9 u = 900
1 u = 900 ÷ 9 = 100
Number of stickers that Bryan has
= 7 u
= 7 x 100
= 700
(b)
Number of stickers that Bryan and Adam have
= 7 u + 4 u
= 11 u
= 11 x 100
= 1100
(c)
Number of less stickers that Charlie has than Bryan
= 7 u - 2 u
= 5 u
= 5 x 100
= 500
Answer(s): (a) 700; (b) 1100; (c) 500