6 students shared the cost of a gift equally. When calculating the amount each student had to pay, a mistake was made. The cost of the gift was divided by 7 instead of 6. Each student ended up paying $2.20 less than the correct amount. What should be the correct amount for each share?
| |
6 students |
7 students |
| Number |
6 |
7 |
| Value |
1 u + 2.20 |
1 u |
| Total value |
6 u + 13.20 |
7 u |
Total cost of the gift if it was paid by 6 students
= 6(1 u + 2.20)
= 6 u + 13.20
Total cost of the gift if it was paid by 7 students = 7 u
7 u = 6 u + 13.20
7 u - 6 u = 13.20
1 u = 13.20
Correct amount for each share
= 1 u + 2.20
= 13.20 + 2.20
= $15.40
Answer(s): $15.40
