4 children shared the cost of a present equally. When calculating the amount each child had to pay, a mistake was made. The cost of the present was divided by 5 instead of 4. Each child ended up paying $2.10 less than the correct amount. What should be the correct amount for each share?
|
4 children |
5 children |
Number |
4 |
5 |
Value |
1 u + 2.10 |
1 u |
Total value |
4 u + 8.40 |
5 u |
Total cost of the present if it was paid by 4 children
= 4(1 u + 2.10)
= 4 u + 8.40
Total cost of the present if it was paid by 5 children = 5 u
5 u = 4 u + 8.40
5 u - 4 u = 8.40
1 u = 8.40
Correct amount for each share
= 1 u + 2.10
= 8.40 + 2.10
= $10.50
Answer(s): $10.50