alleryA 180 m ट्रेन 420 m सुरंग में 20 m/s पर प्रवेश करती है। इसे पूरी तरह साफ़ करने का समय आ गया है?
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
सुरंग को साफ़ करने के लिए ट्रेन को 180 + 420 = 600 मीटर की यात्रा करनी होगी, जिसमें 600 ÷ 20 = 30 सेकंड लगेंगे।
Keep practising Time, Speed and Distance
Browse all Time, Speed and Distance questions for RPF Constable, or explore more Arithmetic topics.
Related questions
Motion: combine the cluesMotion: choose the resultA boat’s still-water speed is 12 km/h. It covers 30 km downstream and 18 km upstream in 4 A 120 m train at 54 km/h overtakes a 180 m train moving the same way in 60 s. Slower trainTwo runners start together on a 400 m circular track at 5 and 3 m/s in the same direction.In a 200 m race A beats B by 20 m. A runs at 10 m/s. What is B’s speed?A boat moves at 12 km/h in still water; the stream is 3 km/h. Time for 27 km downstream anTrains 180 m and 220 m long move oppositely at 54 and 36 km/h. Time to cross completely?