There are four times as many red dresses as yellow dresses in a sale. If there are 135 red and yellow dresses altogether,
- how many red dresses are there?
- how many more red dresses than yellow dresses?
(a)
Number of yellow dresses = 1 u
Number of red dresses
= 4 x 1 u
= 4 u
Total number of dresses
= 4 u + 1 u
= 5 u
5 u = 135
1 u = 135 ÷ 5 = 27
Number of red dresses
= 4 u
= 4 x 27
= 108
(b)
Number of more red dresses than yellow dresses
= 4 u - 1 u
= 3 u
= 3 x 27
= 81
Answer(s): (a) 108; (b) 81