Question
Who has taken over as the new Chairman and MD of Coal
India?Solution
PM Prasad has taken over as the new Chairman and MD of Coal India. Prior to his new role, Prasad was heading CCL, a subsidiary of Coal India based in Jharkhand. Prasad has more than 30 years of experience in the coal mining sector. He holds a post graduate degree in Mining Engineering from the Indian School of Mines, IIT Dhanbad.
The ratio of downstream speed to upstream speed of a boat is 5:3. If the boat can cover 160 km in still water in 10 hours, then find the difference betw...
A boat travels 40 km downstream in 5 hours, and the same boat travels 40 km upstream in 8 hours. Find the speed of the boat in still water.
A man rows upstream 16 km and downstream 24 km taking 8 hours each. Find the man’s speed in still water.
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 10 minutes to cover 28 km in downstream, then find th...
A boat can cover 110 km in upstream in 11 hours and 140 km in downstream in 7 hours. Find the speed of the stream.
The total time taken by a boat to cover (d+30) km in downstream and (d-60) km in upstream is (t+3) hours. The speed of stream is one fourth of the speed...
The speed of the boat and the speed of the stream is 15km/hr and 3km/hr individually. The boat travel for a period of 3 hours upstream and 4 hours downs...
The ratio of the speed of boats ‘A’ and ‘B’ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in...
A swimmer swims from a point A against a current for 12 minutes and then swims backwards in favour of the current for next 12 minutes and comes to the p...
A man rows 240 km upstream in 5 hours and 360 km downstream in 5 hours. Find the time required to row 300 km in still water.