3 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 4 instead of 3. Each child ended up paying $2.60 less than the correct amount. What should be the correct amount for each share?
| |
3 children |
4 children |
| Number |
3 |
4 |
| Value |
1 u + 2.60 |
1 u |
| Total value |
3 u + 7.80 |
4 u |
Total cost of the present if it was paid by 3 children
= 3(1 u + 2.60)
= 3 u + 7.80
Total cost of the present if it was paid by 4 children = 4 u
4 u = 3 u + 7.80
4 u - 3 u = 7.80
1 u = 7.80
Correct amount for each share
= 1 u + 2.60
= 7.80 + 2.60
= $10.40
Answer(s): $10.40
