There are four times as many white sweaters as grey sweaters in a sale. If there are 115 white and grey sweaters altogether,
- how many white sweaters are there?
- how many more white sweaters than grey sweaters?
(a)
Number of grey sweaters = 1 u
Number of white sweaters
= 4 x 1 u
= 4 u
Total number of sweaters
= 4 u + 1 u
= 5 u
5 u = 115
1 u = 115 ÷ 5 = 23
Number of white sweaters
= 4 u
= 4 x 23
= 92
(b)
Number of more white sweaters than grey sweaters
= 4 u - 1 u
= 3 u
= 3 x 23
= 69
Answer(s): (a) 92; (b) 69