Subject
Bank Exam
Topic
Rupali Bank 2013 (Officer)
A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?
A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?
ক)
36kmphখ)
45 kmphগ)
48 kmphঘ)
50 kmphExplanation
Speed while going = 40 km/hr Speed while returning = 150% of 40 = 60 km/hr Average speed = 2xy/(x+y) = 2*40*60/(40+60) = 4800/100 = 48 kmphRelated questions
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