Civil Services Uttar Pradesh (उत्तर प्रदेश) PCS Mock Test Series 2025 Quantitative Aptitude Speed Time and Distance Partial Speed
A train X starts from a place at a speed of 50km/hr. After one hour another train Y starts from the same place at the speed 70 km/hr. After how much time will Y cross X, after starting of X?
1
3 hour
2
\(2\frac{1}{2}\)hour
3
\(3\frac{1}{2}\)hour
4
\(2\frac{1}{4}\) hour