Min's shop sold coats and jumpsuits. The coats were sold at $60 each and each jumpsuit was sold at
12 of the price of each coat. Min sold
15 of the items on the first day and collected $2700.
12 of the items sold on the first day were coats.
- How many jumpsuits were sold on the first day?
- What was the total number of items left after the first day?
(a)
Sold |
Unsold |
Total |
1x2 |
4x2 |
5x2 |
Coats |
Jumpsuits |
|
|
1x1 |
1x1 |
|
|
1 u |
1 u |
8 u |
10 u |
The total number of coats and jumpsuits sold is repeated. Make the total number of coats and jumpsuits sold the same. LCM of 2 and 1 is 2.
|
Coats |
Jumpsuits |
Total |
Number |
1 u |
1 u |
2 u |
Value |
$60 |
$30 |
|
Total value |
60 u |
30 u |
90 u |
Cost of each jumpsuit
=
12 x 60
= $30
Total amount collected from selling the coats and the jumpsuits on the first day
= 60 u + 30 u
= 90 u
90 u = 2700
1 u = 2700 ÷ 90 = 30
Number of jumpsuits sold on the first day
= 1 u
= 30
(b)
Total number of items left after the first day
= 8 u
= 8 x 30
= 240
Answer(s): (a) 30; (b) 240