Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Speed Time and Distance
A train crosses a tree and a 150-metre long school boundary in 20 seconds and 50 seconds respectively. What is the speed of the train?
1
18 km/hr
2
25 km/hr
3
5 m/sec
4
More than one of the above
5
None of the above