There are thrice as many black skirts as green skirts in a sale. If there are 188 black and green skirts altogether,
- how many black skirts are there?
- how many more black skirts than green skirts?
(a)
Number of green skirts = 1 u
Number of black skirts
= 3 x 1 u
= 3 u
Total number of skirts
= 3 u + 1 u
= 4 u
4 u = 188
1 u = 188 ÷ 4 = 47
Number of black skirts
= 3 u
= 3 x 47
= 141
(b)
Number of more black skirts than green skirts
= 3 u - 1 u
= 2 u
= 2 x 47
= 94
Answer(s): (a) 141; (b) 94