A train increases its normal speed by 12.5% and reaches its destination 20 min e
A train increases its normal speed by 12.5% and reaches its destination 20 min earlier. What is the actual time taken by the train…
A star is 8.1 × 10 13 km away from the earth. Suppose light travels at the spee
A star is 8.1 × 10 13 km away from the earth. Suppose light travels at the speed of 3.0 × 10 5 km…
A plane flying north at 500 mph passes over a city at 12 noon. A plane flying ea
A plane flying north at 500 mph passes over a city at 12 noon. A plane flying east at the same altitude passes over…
The speed of A and B are in the ratio 3 : 4. A takes 20 minutes more than B to r
The speed of A and B are in the ratio 3 : 4. A takes 20 minutes more than B to reach a destination….
The speed of a car increases by 2 kms after every one hours. If the distance tra
The speed of a car increases by 2 kms after every one hours. If the distance travelled in the first one hour was 35…
The average speed of a train in the onward journey is 25% more than that in the
The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for one…
With an average speed of 50 km/hr, a train reaches its destination in time. If i
With an average speed of 50 km/hr, a train reaches its destination in time. If it goes with an average speed of 40 km/hr,…
Ramesh travels 760 km to his home, partly by train and partly by car. He takes 8
Ramesh travels 760 km to his home, partly by train and partly by car. He takes 8 hours, if he travels 160 km by…
Two boys A and B start at the same time to ride from Delhi to Meerut, 60 km away
Two boys A and B start at the same time to ride from Delhi to Meerut, 60 km away. A travels 4 km an…
A train started from station A and proceeded towards station B at a speed of 48
A train started from station A and proceeded towards station B at a speed of 48 km/hr. Forty-five minutes later another train started from…
How long must a driver take to drive the final 70 miles of a trip if he wants to
How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour…
A long distance runner run 9 laps of a 400 metres track everyday. His timings (i
A long distance runner run 9 laps of a 400 metres track everyday. His timings (in min) for four consecutive days are 88, 96,…