4 friends shared the cost of a present equally. When calculating the amount each friend had to pay, a mistake was made. The cost of the present was divided by 5 instead of 4. Each friend ended up paying $1.10 less than the correct amount. What should be the correct amount for each share?
| |
4 friends |
5 friends |
| Number |
4 |
5 |
| Value |
1 u + 1.10 |
1 u |
| Total value |
4 u + 4.40 |
5 u |
Total cost of the present if it was paid by 4 friends
= 4(1 u + 1.10)
= 4 u + 4.40
Total cost of the present if it was paid by 5 friends = 5 u
5 u = 4 u + 4.40
5 u - 4 u = 4.40
1 u = 4.40
Correct amount for each share
= 1 u + 1.10
= 4.40 + 1.10
= $5.50
Answer(s): $5.50
