Mrs Sih bought an equal number of skirts and dresses. Each skirt cost $18 and each dress cost $10. Mrs Sih paid $50 for the dresses. What was the total amount of money spent?
| |
Skirts |
Dresses |
Total |
| Number |
1 u |
1 u |
2 u |
| Value |
$18 |
$10 |
|
| Total value |
18 u |
10 u |
28 u |
Number of skirts = 1 u
Number of dresses = 1 u
Total cost of skirts = 1 u x 18 = 18 u
Total cost of dresses = 1 u x 10 = 10 u
10 u = 50
1 u = 50 ÷ 10 = 5
Total cost of skirts and dresses
= 18 u + 10 u
= 28 u
= 28 x 5
= $140
Answer(s): $140
