There are four times as many red shirts as grey shirts in a sale. If there are 125 red and grey shirts altogether,
- how many red shirts are there?
- how many more red shirts than grey shirts?
(a)
Number of grey shirts = 1 u
Number of red shirts
= 4 x 1 u
= 4 u
Total number of shirts
= 4 u + 1 u
= 5 u
5 u = 125
1 u = 125 ÷ 5 = 25
Number of red shirts
= 4 u
= 4 x 25
= 100
(b)
Number of more red shirts than grey shirts
= 4 u - 1 u
= 3 u
= 3 x 25
= 75
Answer(s): (a) 100; (b) 75