Question

A man travels some distance at a speed of 32 km/hr and returns at a speed of 24 km/hr. If the total time taken by him is 2 hrs 20 min, the distance is

A 20 km Correct Answer Incorrect Answer
B 32 km Correct Answer Incorrect Answer
C 54 km Correct Answer Incorrect Answer
D 24 km Correct Answer Incorrect Answer

Solution

Let the distance travelled by a man be D km According to the question, Total time taken = 2 hrs 20 min = 2(20/60) = 7/3 hours Total time = T1 + T2 D/32 + D/24 = 7/3 (3D + 4D)/96 = 7/3 7D/96 = 7/3 D = 32 km

Practice Next

Relevant for Exams:

×
×