A car travels uphill at 30 km/hr and downhill at 70 km/hr. It goes 100 km uphill and 50 km downhill. Find the average speed of the car? Choose the correct choice from the following answers.
A) 32kmph	B) 33kmph	C) 34kmph	D) 35kmph	E) 37kmph
avg speed=total distance/total time.   total distance traveled=100+50= 
<gadget id="calculator">100+50</gadget>
<output>150</output>
150km;   time taken for uphill journey=100/30=10/3;   time taken for down hill journey=50/60=5/7;   avg speed=150/(10/3+5/7)=37kmph   ANSW37kmphR:37kmph
<result>E</result>
A car travels uphill at 30 km/hr and downhill at 70 km/hr. It goes 100 km uphill and 50 km downhill. Find the average speed of the car?