Mrs Gan bought an equal number of jumpsuits and vests. Each jumpsuit cost $12 and each vest cost $9. Mrs Gan paid $27 for the vests. What was the total amount of money spent?
| |
Jumpsuits |
Vests |
Total |
| Number |
1 u |
1 u |
2 u |
| Value |
$12 |
$9 |
|
| Total value |
12 u |
9 u |
21 u |
Number of jumpsuits = 1 u
Number of vests = 1 u
Total cost of jumpsuits = 1 u x 12 = 12 u
Total cost of vests = 1 u x 9 = 9 u
9 u = 27
1 u = 27 ÷ 9 = 3
Total cost of jumpsuits and vests
= 12 u + 9 u
= 21 u
= 21 x 3
= $63
Answer(s): $63
