Here Important Math MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.
Q) 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
Q) If a train runs at 40 km/h it reaches its destination late by 11 min, but if it runs at 50 km/h it is late by 5 min only. the correct time for the train to complete its journey is
Q) A constable is 114 behind a thief. The constable runs 21 mtr in a min and the thief 15 mtr in a minute. in what time will the constable catch the thief?