Adam has 800 red stickers and green stickers.
10% of the stickers are green.
- How many red stickers are there?
- How many more red stickers than green stickers?
(a)
10% =
10100 =
110 Total number of stickers = 10 u
Number of green stickers = 1 u
Number of red stickers = 10 u - 1 u = 9 u
10 u = 800
1 u = 800 ÷ 10 = 80
Number of red stickers
= 9 u
= 9 x 80
= 720
(b)
Number of more red stickers than green stickers
= 9 u - 1 u
= 8 u
= 8 x 80
= 640
Answer(s): (a) 720; (b) 640