allery180 কিলোমিটাৰ যাত্ৰাত 3.5 ঘন্টা সময় লাগে: 30 কিলোমিটাৰ প্ৰতি ঘণ্টাত 60 কিলোমিটাৰ, 60 কিলোমিটাৰ প্ৰতি ঘণ্টাত 60 কিলোমিটাৰ। শেষ গতি?
A150 km/h
B120 km/h
C90 km/h
D100 km/h
Answer & Solution
Correct answer: B. 120 km/h
প্ৰথম দুটা পৰ্যায়ত 2 + 1 = 3 ঘণ্টা সময় লাগে, 60 ÷ 0.5 = 120 কিলোমিটাৰ প্ৰতি ঘণ্টাত 60 কিলোমিটাৰৰ বাবে 0.5 ঘণ্টা বাকী থাকে।
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?