alleryA 180 m ٹرین 420 m سرنگ میں 20 m/s پر داخل ہوتی ہے۔ اسے مکمل طور پر صاف کرنے کا وقت؟
A24 s
B30 s
C21 s
D36 s
Answer & Solution
Correct answer: B. 30 s
ٹرین کو سرنگ صاف کرنے کے لیے 180 + 420 = 600 میٹر کا سفر کرنا چاہیے، جس میں 600 ÷ 20 = 30 سیکنڈ لگتے ہیں۔
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?