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SAT® Math

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Gas Mileage

SATMAT-IEKKJX

A car, which is able to travel $ m $ miles per gallon, has a gas tank which holds $ G $ gallons of gas.The car started a $200$ mile trip with a full tank of gas. After the trip, the gas tank was$ \frac { 3 }{ 8 } $ full.The equation: $T = G - \frac { 200 }{ m } $ represents the total amount of gas left in the tank after the trip.Which of the following is the value of $ G $ in gallons? (Calculator)

A

$\cfrac { 320 }{ m } $

B

$ \cfrac { 200 }{ m } $

C

$ \cfrac { 5 }{ 8 } G$

D

$\cfrac { 3 }{ 8 } G $