Question

Samantha drove her car with a full tank of gas 268 miles to her friends town for an average of 22.68 miles/gallons and then refilled her car with gas. How much gas was used by the car on the trip?

Answer 1

Answer:

23.64 gallons

Step-by-step explanation:

Given:

Samantha drove her car with a full tank of gas 268 miles to her friends town

for an average of 22.68 miles/gallons and then refilled her car with gas.

Question asked:

How much gas was used by the car on the trip ?

Solution:

By unitary method:

As  average of car is given 22.68 miles/gallons:

For 22.68 miles, number of gallons of gas used = 1

For 1 mile, number of gallons of gas used = $\frac{1}{22.68}$

For 268 mile, number of gallons of gas used = $\frac{1}{22.68}\times268$

                                                                           = $\frac{268}{22.68} =11.82$

Now, to find total gas used in whole trip :-

11.82 + 11.82 = 23.64 gallons of gas

Thus, 23.64 gallons of gas used by the car on the trip.