Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Speed Time and Distance Partial Speed
A toy train runs on a equilateral triangle track which side is 14 m. It covers the track in 21 seconds. In how much time taken by train to cover a circular track which radius is 7 m
1
20 seconds
2
25 seconds
3
22 seconds
4
More than one of the above
5
None of the above