3 girls shared the cost of a souvenir equally. When calculating the amount each girl had to pay, a mistake was made. The cost of the souvenir was divided by 4 instead of 3. Each girl ended up paying $3.60 less than the correct amount. What should be the correct amount for each share?
|
3 girls |
4 girls |
Number |
3 |
4 |
Value |
1 u + 3.60 |
1 u |
Total value |
3 u + 10.80 |
4 u |
Total cost of the souvenir if it was paid by 3 girls
= 3(1 u + 3.60)
= 3 u + 10.80
Total cost of the souvenir if it was paid by 4 girls = 4 u
4 u = 3 u + 10.80
4 u - 3 u = 10.80
1 u = 10.80
Correct amount for each share
= 1 u + 3.60
= 10.80 + 3.60
= $14.40
Answer(s): $14.40