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Learn TET MCQs with answers [Page -72 of Department 5]
-720) A man covers half of his journey at 6 kilometre per hour and the remaining half at 3 kilometre per hour his average speed is
(A) 4.5 km/h
(B) 3 km/h
(C) 4 km/h
(D) 9 km/h
Correct Answer - Option
(C)
Explanation :
Find total time taken. Let total distance is 2x, hence first half distance will be covered in x/6 hours, similarly last half distance will be covered in x/3 hours. Now add both times taken. Total time taken is x/2 hours. Average speed = total distance/ total time => 2x/x/2 => 4 km/h is answer
You are learning MCQ Questions of TET Department : 5 | Page : -72
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