Time and Distance

A salseman travels a distance of 70 miles in 2.5 hours. How much faster in miles per hour; must he travels to make the same trip in 0.75 hours less time?-12
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?-50 kmph
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?-m/(r + 2s)
A man travels 4 miles north, 12 miles east and then 12 miles north. How far (to the nearest mile) is he from the starting point?-20
How long would it take a man cycling at 30 miles per hour to cover a distance of 44 feet?-1 sec
Ali starts from his home at 5 am and travels towards Chittagong at 30 km/hr. Belal starts from the same home at 7 am and travels along the same route towards Chittagong, overtaking Ali at exactly 11 am. At what speed in km/hr was Belal traveling?-45
A car travels at the rate of 50 miles per hour. How many minutes will it take to travel 2/5 miles at this speed?-0.48
A man travels 100 miles at 20 miles per, 60 miles at 30 miles per hour and and 80 miles at 10 miles per hour, what is his average rate for the three trips?-16 miles per hour
A wheel makes 1000 revolutions in covering a distance of 88 km. The diameter of the wheel is----28m
A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?-133.33 mph
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?-60
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?-108 mins
A train went 300 miles from city X to city Y at an average speed of 100 mph. At what speed did it travel on the way back if its average speed for the whole trip was 120 mph?-150 mph
A train 360 m long is running at a speed of 45 km/hour. In what time will pass a bridge 140 m long?-40 seconds
At the same time that a 60-feet tall building casts a shadow that 21.5 feet long, a nearby tree casts a shadow that is 18 feet long. Which measure is closet to the height of the tree?-50.2 ft
A train travels at an average speed of 50 miles per hour for 2.5 hour and then travels at an average speed of 70 miles per hour for 1.5 hours. How far did the train travel in the entire 4 hour?-230 miles
Starting from point A, Kasshem walked 300 meters towards North to B and then walksd another 400 meters towards East to C. What is the shortest distance between C and A?-500
If a train at 40 kmph, it reaches its destination late by 11 minutes but it runs at 50 kmph, it late by 5 minutes only. The correcnt time for the train to complete its journey is:-19 minutes
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?-135
10 mins after a plane leaves the airport, it is reported to be 40 miles away, what is the average speed in miles per hour of the plane?-240
In a 100m race, A beats B by 10m and C by 13m. In a race of 180m, B will beat C by---6m
A man run x miles in m minutes. What is his rate of run in miles per hour?-60x/m
Sumi walks to her office at the rate of 4 miles per hour. If she increases her walking speed by one mile per hour, she would reach her office half an hour earlier than the previous time. What is the distance in miles of her office from her house?-10
2 cars leave a office at 12 noon, with one car traveling south at 60 mph and the other north at 40 mph along a straight road. At what time will they be 50 miles apart?-12:30
If a plane can travel P miles in Q hours, how long will it take to travel R miles?-QR/P hours
A man intends to run a certain distance in 1/4 th less than he usually takes. By what percentage must he increase his running speed to accomplish this goal?-33.33%
A plane traveling at 600 miles per hour is heading for chittagong airport. At 3:58 pm it is 30 miles from the airport. At what time will arrive at the airport?-4:01 pm
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?-3 miles
Roman covers 17 kilometer in 5 hours. How much time does he need to cover 10.2 kilometer?-3 hrs
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?-30
A man is running at a speed of 8 km per hour for a distance of 5200 meters. How many minutes would it take him to cover the distance?-39
A car passes Dhaka at 9:55 am and Gazipur at 10:15 am. Gazipur is 30 miles from Dhaka. What is the average speed of the car in miles per hour?-90
If two planes leave the same airport at 1:00 pm, how many miles apart will they be at 3:00 pm if one travels directly north at 150 mph and the other travels directly west at 200 mph?-500 miles