3 children shared the cost of a souvenir equally. When calculating the amount each child had to pay, a mistake was made. The cost of the souvenir was divided by 4 instead of 3. Each child ended up paying $1.80 less than the correct amount. What should be the correct amount for each share?
|
3 children |
4 children |
Number |
3 |
4 |
Value |
1 u + 1.80 |
1 u |
Total value |
3 u + 5.40 |
4 u |
Total cost of the souvenir if it was paid by 3 children
= 3(1 u + 1.80)
= 3 u + 5.40
Total cost of the souvenir if it was paid by 4 children = 4 u
4 u = 3 u + 5.40
4 u - 3 u = 5.40
1 u = 5.40
Correct amount for each share
= 1 u + 1.80
= 5.40 + 1.80
= $7.20
Answer(s): $7.20