A store owner paid a total of $3360 for some skirts and some jumpsuits. He paid $1440 less for the skirts than the jumpsuits. Each skirt cost $18 less than each jumpsuit. The number of skirts he bought was ⁵₈ of the number of jumpsuits bought.

1. How much did he pay for all the skirts?
2. How many skirts did he buy?

	Skirts	Jumpsuits	Difference in cost	Number of items in 1 set
Number of sets	5	8
Total cost	$960	$2400
Cost of 1 set	960 ÷ 5 = $192	2400 ÷ 8 = $300	300 - 192 = $108
Cost of each item	1 u	1 u + $18	$18	108 ÷ 18 = 6

(a)
Total amount = $3360
Total amount spent on skirts = (3360 - 1440) ÷ 2 = $960
Total amount spent on jumpsuits = 960 + 1440 = $2400

Amount that he paid for all the skirts = $960

(b)
5 sets of skirts = $960
8 sets of jumpsuits = $2400

1 set of skirts = 960 ÷ 5 = $192
1 set of jumpsuits = 2400 ÷ 8 = $300

Difference in the amount paid for each set of jumpsuits and skirts
= 300 - 192
= $108

The extra $108 is due to each jumpsuit costing $18 more than each skirt.

Number of skirts in 1 set
= 108 ÷ 18
= 6

Number of skirts that he bought
= 5 sets of skirts
= 5 x 6
= 30

Answer(s): (a) $960; (b) 30