Question

The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week. Sally paid $26.40 for gasoline last week at the station. How much more will Sally pay this week at the station for the same amount of gasoline?

A. $1.70B. $2.55C. $2.64D. $2.72E. $2.90

Answer 1

D. $2.72

Explanation:

The price of gasoline at a service station increased from $1.65 per gallon last week to $1.82 per gallon this week.

We need to find the percentage increase in the price of gasoline.

$1.82 - $1.65 = $0.17

=>
`(0.17)/(1.65) * 100` = 10.3%

There was a 10.3% increase in the price of gasoline.

Sally paid $26.40 for gasoline last week at the station. To find increase in the corresponding amount that Sally paid last week, we multiply $26.40 dollars by 10.3%:

`(10.3)/(100) * 26.40` = $2.72

Sally will pay $2.72 more for the same amount of gasoline.