UP Police Constable10 Jun 2026Shift 1Problems on Trains

A train 600 metres long is running at a speed of 54 km/h. How much time will it take to pass completely through a tunnel that is 1.2 kilometres long?

600 मीटर लंबी एक रेलगाड़ी 54 किमी/घंटा की चाल से चल रही है। 1.2 किलोमीटर लंबी सुरंग को पूरी तरह से पार करने में उसे कितना समय लगेगा?

Answer और ExplanationAnswer and explanation

Answer: (B) 120 seconds

चाल (Speed) = 54 × 518 = 15 m/s
दूरी (Distance) = 600 + 1200 = 1800 m
समय = 180015 = 120 सेकंड
✓
इसमें 120 सेकंड लगेंगे।
Speed = 54 × 518 = 15 m/s
Distance = 600 + 1200 = 1800 m
Time = 180015 = 120 seconds
✓
It takes 120 seconds.

Source: UP Police Constable · 10 Jun 2026 · Shift 1। Solution: Prashant Sir, Vijayastra।Source: UP Police Constable · 10 Jun 2026 · Shift 1. Solution by Prashant Sir, from Vijayastra.