Question
Quantitative Aptitude Question on Time Speed and Distance
A wheel of car makes 3900 revolutions in 2 hours. If the radius of the wheel is 21 cm, then speed of the car is
A
63.5 m/sec
B
71.5 m/sec
C
92.56 m/sec
D
0.715 m/sec
Answer
0.715 m/sec
Explanation
Solution
The correct answer is (D);0.715 m/sec