Adam has 400 blue stickers and red stickers.
30% of the stickers are red.
- How many blue stickers are there?
- How many more blue stickers than red stickers?
(a)
30% =
30100 =
310 Total number of stickers = 10 u
Number of red stickers = 3 u
Number of blue stickers = 10 u - 3 u = 7 u
10 u = 400
1 u = 400 ÷ 10 = 40
Number of blue stickers
= 7 u
= 7 x 40
= 280
(b)
Number of more blue stickers than red stickers
= 7 u - 3 u
= 4 u
= 4 x 40
= 160
Answer(s): (a) 280; (b) 160