Adam, Charlie and Bryan have some stickers in the ratio of 7 : 3 : 3.
Adam and Charlie have a total of 700 stickers.
- How many stickers does Adam have?
- How many stickers do Adam and Bryan have?
- How many less stickers does Charlie have than Adam?
(a)
Number of stickers that Adam has = 7 u
Number of stickers that Charlie has = 3 u
Number of stickers that Bryan has = 3 u
Number of stickers Adam and Charlie have
= 7 u + 3 u
= 10 u
10 u = 700
1 u = 700 ÷ 10 = 70
Number of stickers that Adam has
= 7 u
= 7 x 70
= 490
(b)
Number of stickers that Adam and Bryan have
= 7 u + 3 u
= 10 u
= 10 x 70
= 700
(c)
Number of less stickers that Charlie has than Adam
= 7 u - 3 u
= 4 u
= 4 x 70
= 280
Answer(s): (a) 490; (b) 700; (c) 280