Adam has 500 red stickers and blue stickers.
20% of the stickers are blue.
- How many red stickers are there?
- How many less blue stickers than red stickers?
(a)
20% =
20100 =
15 Total number of stickers = 5 u
Number of blue stickers = 1 u
Number of red stickers = 5 u - 1 u = 4 u
5 u = 500
1 u = 500 ÷ 5 = 100
Number of red stickers
= 4 u
= 4 x 100
= 400
(b)
Number of less blue stickers than red stickers
= 4 u - 1 u
= 3 u
= 3 x 100
= 300
Answer(s): (a) 400; (b) 300