Question : A train covers a certain distance in 210 minutes at a speed of 60 km/hr. The time taken by the train, to cover the same distance at a speed of 80 km/hr is:

Option 1: $3\frac{5}{8}\ \text{hours}$

Option 2: $2\frac{5}{8}\ \text{hours}$

Option 3: $4\frac{5}{8}\ \text{hours}$

Option 4: $3\ \text{hours}$

Question : An aeroplane covers a certain distance at a speed of 400 km/hr in 8 hours. To cover the same distance in 5 hours, the speed of the aeroplane will be:

Option 1: 640 km/hr

Option 2: 680 km/hr

Option 3: 580 km/hr

Option 4: 600 km/hr

Question : A man walking at the speed of 8 km/hr covers a certain distance in 5 hours and 30 minutes. If he covers the same distance by cycle in 4 hours, then what is the speed of the cycle?

Option 1: 11 km/hr

Option 2: 15 km/hr

Option 3: 8 km/hr

Option 4: 9 km/hr

Question : A person covers a certain distance in 6 hours if he travels at 40 km/hr. If he has covered the same distance in 4 hours, then his speed must be:

Option 1: 50 km/hr

Option 2: 60 km/hr

Option 3: 80 km/hr

Option 4: 70 km/hr

Question : A man covers half part of a certain distance at 60 km/hr. He covers 40% of the remaining distance at the speed of 12 km/hr and covers the rest of the distance at the speed of 18 km/hr. What is his average speed for the entire journey?

Option 1: 24 km/hr

Option 2: $\frac{58}{3}$ km/hr

Option 3: 36 km/hr

Option 4: 40 km/hr