There are thrice as many blue skirts as silver skirts in a sale. If there are 200 blue and silver skirts altogether,
- how many blue skirts are there?
- how many more blue skirts than silver skirts?
(a)
Number of silver skirts = 1 u
Number of blue skirts
= 3 x 1 u
= 3 u
Total number of skirts
= 3 u + 1 u
= 4 u
4 u = 200
1 u = 200 ÷ 4 = 50
Number of blue skirts
= 3 u
= 3 x 50
= 150
(b)
Number of more blue skirts than silver skirts
= 3 u - 1 u
= 2 u
= 2 x 50
= 100
Answer(s): (a) 150; (b) 100