Cathy's shop sold jumpsuits and vests. The jumpsuits were sold at $120 each and each vest was sold at
23 of the price of each jumpsuit. Cathy sold
14 of the items on the first day and collected $9600.
23 of the items sold on the first day were jumpsuits.
- How many vests were sold on the first day?
- What was the total number of items left after the first day?
(a)
Sold |
Unsold |
Total |
1x3 |
3x3 |
4x3 |
Jumpsuits |
Vests |
|
|
2x1 |
1x1 |
|
|
2 u |
1 u |
9 u |
12 u |
The total number of jumpsuits and vests sold is repeated. Make the total number of jumpsuits and vests sold the same. LCM of 3 and 1 is 3.
|
Jumpsuits |
Vests |
Total |
Number |
2 u |
1 u |
3 u |
Value |
$120 |
$80 |
|
Total value |
240 u |
80 u |
320 u |
Cost of each vest
=
23 x 120
= $80
Total amount collected from selling the jumpsuits and the vests on the first day
= 240 u + 80 u
= 320 u
320 u = 9600
1 u = 9600 ÷ 320 = 30
Number of vests sold on the first day
= 1 u
= 30
(b)
Total number of items left after the first day
= 9 u
= 9 x 30
= 270
Answer(s): (a) 30; (b) 270