A person travels from P to Q a speed of 30 km/hr and returns by increasing his speed by 30%. What is his average speed for both the trips?	Answers
A) 33
B) 77
C) 48
D) 99
E) 34.5
Speed on return trip = 130% of 30 = 39 km/hr.   Average speed of trip = 30 + 39 /2 = 69/2= 
<gadget id="calculator">69/2</gadget>
<output>69/2 = around 34.5</output>
34.5 km/hr   Answer : 34.5
<result>E</result>
A person travels from P to Q a speed of 30 km/hr and returns by increasing his speed by 30%. What is his average speed for both the trips?