A car has a 20-gallon fuel to travel 500 miles.At this rate, how many gallons of fuel are needed for a 1000 mile car ?
Choose the correct choice from the following
A) 10
B) 30
C) 20
D) 40
E) 50
Number of gallons of fuel per mile = 500 /20= 
<gadget id="calculator">500 /20</gadget>
<output>25</output>
25 gallons per mile   Number of gallons of fuel for a 1000 mile car= 1000/25= 
<gadget id="calculator">1000/25</gadget>
<output>40</output>
40   ANSWER:40
<result>D</result>
A car has a 20-gallon fuel to travel 500 miles.At this rate, how many gallons of fuel are needed for a 1000 mile car ?