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 $3.70 less than the correct amount. What should be the correct amount for each share?
|
4 friends |
5 friends |
Number |
4 |
5 |
Value |
1 u + 3.70 |
1 u |
Total value |
4 u + 14.80 |
5 u |
Total cost of the present if it was paid by 4 friends
= 4(1 u + 3.70)
= 4 u + 14.80
Total cost of the present if it was paid by 5 friends = 5 u
5 u = 4 u + 14.80
5 u - 4 u = 14.80
1 u = 14.80
Correct amount for each share
= 1 u + 3.70
= 14.80 + 3.70
= $18.50
Answer(s): $18.50