180 किमी की यात्रा में 3.5 घंटे लगते हैं: 30 किमी/घंटा की गति से 60 किमी, 60 किमी/घंटा की गति से 60 किमी। अंतिम गति?
A150 km/h
B120 km/h
C90 km/h
D100 km/h
Answer & Solution
Correct answer: B. 120 km/h
पहले दो चरणों में 2 + 1 = 3 घंटे लगते हैं, 60 km के लिए 60 ÷ 0.5 = 120 किमी/h पर 0.5 घंटे लगते हैं।
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?