Aptitude Solved Problem : A man walking at the rate of 4 kmph a man cover certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph the man will cover the same distance then find its time?

Aptitude Solved Problem :

 A man walking at the rate of 4 kmph a man cover certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph the man will cover the same distance then find its time?

Answer: 40 minutes
Explanation:
Speed = Distance / Time
Distance = Speed * Time
Time = 2hr 45 min
= 2 (45 / 60 ) hr
= 2 ( 3 / 4 ) hr
= ( 11 / 4 ) hr
Speed = 4 km / hr
Distance = 4 * ( 11 / 4 )
= 11km
New Speed = 16.5 km / hr
Time = Distance / Speed
= 11 / 16.5
= 0.666666667 hr
= ( 0.666666667 * 60 ) min
= 40 min
∴ Time taken is 40 minutes. 

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