allery120 m लांबायेची रेल्वेगाडी 54 km/h वेगान 60 sांत तिच्याच दिशेन चलपी 180 m लांबायेच्या गाडयेक पुराय ओलांडता. हळू चलपी गाडयेचो वेग कितलो?
A36 km/h
B30 km/h
C40 km/h
D45 km/h
Answer & Solution
Correct answer: A. 36 km/h
हें .
सापेक्ष गती (120 + 180)/60 = 5 m/s;
मंद गाडी 15 − 5 = 10 m/s = 36 किमी/h इतल्या वेगान चलता.
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 Two 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?Match the arithmetic result