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 $2.20 less than the correct amount. What should be the correct amount for each share?
|
3 children |
4 children |
Number |
3 |
4 |
Value |
1 u + 2.20 |
1 u |
Total value |
3 u + 6.60 |
4 u |
Total cost of the present if it was paid by 3 children
= 3(1 u + 2.20)
= 3 u + 6.60
Total cost of the present if it was paid by 4 children = 4 u
4 u = 3 u + 6.60
4 u - 3 u = 6.60
1 u = 6.60
Correct amount for each share
= 1 u + 2.20
= 6.60 + 2.20
= $8.80
Answer(s): $8.80