Question

In which of these cases is each stamp worth the most?

1. 7 of the same stamp worth a total of $3.15
2. 8 of the same stamp worth a total of $3.20
3. 10 of the same stamp worth a total of $4.10
4. 16 of the same stamp worth a total of $4.80

Answer 1

1. 7 stamps for $3.15 → $0.45/stamp

Explanation:

Calculate the price per stamp for each scenario:

1)
`(3.15)/(7)=0.45`/stamp

2)
`(3.20)/(8)=0.40`/stamp

3)
`(4.10)/(10)=0.41`/stamp

4)
`(4.80)/(16)=0.3`/stamp

Therefore the first scenario of stamps will be the worth the most per stamp, as it has a higher cost than the rest.

Answer 2

3.15 /7 = 0.45

3.20/8 = 0.40

4.10/10 = 0.41

4.80/16 = 0.3

Answer is 1. 7 stamps worth 3.15