Adam has 700 red stickers and blue stickers.
10% of the stickers are blue.
- How many red stickers are there?
- How many more red stickers than blue stickers?
(a)
10% =
10100 =
110 Total number of stickers = 10 u
Number of blue stickers = 1 u
Number of red stickers = 10 u - 1 u = 9 u
10 u = 700
1 u = 700 ÷ 10 = 70
Number of red stickers
= 9 u
= 9 x 70
= 630
(b)
Number of more red stickers than blue stickers
= 9 u - 1 u
= 8 u
= 8 x 70
= 560
Answer(s): (a) 630; (b) 560