a certain car traveled twice as many miles from town a to town b as it did from town b to town c. from town a to town b, the car averaged 10 miles per gallon, and from town b to town c, the car averaged 12 miles per gallon. what is the average miles per gallon that the car achieved on its trip from town a through town b to town c? Pick one:
A) 11.5
B) 9.5
C) 13.5
D) 10.6
E) 14.5
<gadget id="calculator">12 * 10</gadget>
<output>120</output>

<gadget id="calculator">120 / 2</gadget>
<output>60</output>

<gadget id="calculator">120 + 60</gadget>
<output>180</output>

<gadget id="calculator">120 / 10</gadget>
<output>12</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<gadget id="calculator">12 + 5</gadget>
<output>17</output>

<gadget id="calculator">180 / 17</gadget>
<output>180/17 = around 10.588235</output>

<result>D</result>
a certain car traveled twice as many miles from town a to town b as it did from town b to town c. from town a to town b, the car averaged 10 miles per gallon, and from town b to town c, the car averaged 12 miles per gallon. what is the average miles per gallon that the car achieved on its trip from town a through town b to town c?
divide(add(multiply(12, const_10), divide(multiply(12, const_10), const_2)), add(divide(multiply(12, const_10), 10), divide(divide(multiply(12, const_10), const_2), 12)))
"step 1 ) took lcm of 10 and 12 . . came as 30 . just multiplied by 10 . . . ( to make easy calculation ) step 2 ) 300 distance between b to c . . . do 300 / 12 hence 25 gallons used step 3 ) twice distance . . hence 300 * 2 = 600 . . . do as above . . 600 / 10 = 60 gallons used step 4 ) total gallons . . 25 + 60 = 85 gallons step ) total miles = 300 + 600 = 900 miles hence . . average of whole journey = 900 / 85 which comes to 10.6 answer : d"