Adam has 80 more red stickers than blue stickers.
Adam has 9 times as many red stickers as blue stickers.
- Number of red stickers
- Number of blue stickers
- Total number of stickers
- Number of less blue stickers than red stickers
(a)
The number of red stickers is 9 times the number of blue stickers.
The number of blue stickers is the smaller group.
Number of blue stickers = 1 u
Number of red stickers = 9 u
Number of more red stickers than blue stickers = 9 u - 1 u = 8 u
8 u = 80
1 u = 80 ÷ 8 = 10
Number of red stickers
= 9 u
= 9 x 10
= 90
(b)
Number of blue stickers
= 1 u
= 10
(c)
Total number of stickers
= 9 u + 1 u
= 10 u
= 10 x 10
= 100
(d)
Number of less blue stickers than red stickers
= 9 u - 1 u
= 8 u
= 8 x 10
= 80
Answer(s): (a) 90; (b) 10; (c) 100; (d) 80
