Adam has blue and green stickers in the ratio of 8 : 3.
He has 60 more blue stickers than green stickers.
- How many stickers does Adam have?
- If Adam gives away 40 blue stickers, what is the new ratio of the number of blue stickers to green stickers?
(a)
Number of blue stickers = 8 u
Number of green stickers = 3 u
Number of more blue stickers than green stickers
= 8 u - 3 u
= 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Number of stickers that Adam has
= 8 u + 3 u
= 11 u
= 11 x 12
= 132
(b)
Number of blue stickers after Adam gives away 40
= 8 u - 40
= 8 x 12 - 40
= 96 - 40
= 56
Number of green stickers
= 3 u
= 3 x 40
= 36
New ratio of the number of blue stickers to green stickers
56 : 36
(÷ 4) 14 : 9
Answer(s): (a) 132; (b) 14 : 9