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A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?

1. A 36 kmph
2. B 45 kmph
3. C 48 kmph
4. D 50 kmph

It is 165 miles from Dhaka to Chittagong. If a bus takes 1.5 hrs to travel the first 65 miles, how long must the bus take to travel the final 100 miles in order to average 50 miles/hr during the entire trip?

1. A 108 mins
2. B 120 mins
3. C 78 mins
4. D 80 mins

A train passes city X at 9.55 am and city Y at 10.15 am. The distance between city X and Y is 45 miles. What is the average speed in miles per hour of the train?

1. A 120
2. B 135
3. C 270
4. D None of these

A wheel makes 1000 revolutions in covering a distance of 88 km. The diameter of the wheel is---

1. A 10m
2. B 14m
3. C 28m
4. D 40m

In a 100m race, A beats B by 10m and C by 13m. In a race of 180m, B will beat C by--

1. A 4.5m
2. B 5.4m
3. C 5m
4. D 6m

Hasan can run 10 miles per hour, whilr Jack can run only 8 miles per hour. If they start at the same time from the same point and run is opposite direction, how far apart (to the nearest mile) will they be after 10 minutes?

1. A 1 miles
2. B 3 miles
3. C 4 miles
4. D 5 miles

A truck driver must be complete a 180-mile trip in 4 hours. If his average speed is 50 miles per hour for first 3 hours, then how fast must he travle for the final hour?

1. A 25
2. B 30
3. C 35
4. D 40

A man travels a distance of 60 km at a speed of 90 km/hr and then returns at twice the speed. The total time he took in how many minutes?

1. A 120
2. B 60
3. C 80
4. D 90

A boat sails m miles upstream at the rate of r miles per hour. If the rate of the stream is s miles per hour, how long will it take the boat to return to its starting point?

1. A (m + r)/s
2. B m/(r + 2s)
3. C m/(r + s)
4. D mr - s