allery100 km के लिए, एक कार अपनी गति 20 km/h से 25% तक बढ़ा देती है। समय की बचत हुई?
A1/4 घंटा
B1/2 घंटा
C1 घंटा
D2 घंटे
Answer & Solution
Correct answer: C. 1 घंटा
नई गति 25 km/h है, जिससे यात्रा का समय 100 ÷ 20 = 5 घंटे से कम होकर 100 ÷ 25 = 4 घंटे हो गया है और 1 घंटे की बचत हुई है।
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?