Time and Speed - Train and Boat

A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?

The speed of three cars is in the ratio of 2 : 3 : 4. The ratio of the times taken by these cars to travel the same distance is -

A and B start at the same time with speeds of 40 km/hr and 50 km/hr respectively. If in covering the journey A takes 15 minutes longer than B, the total distance of the journey is

A ferry can travel twice as fast when empty as when it is full. It travels 20 miles with full load, spends 1 hour for unloading and returns to its original post empty. It took 11 hours to complete the journey. What is the speed of the ferry when it is empty?

Two bikes start at the same time from two destination 300 km apart and travel towards each other. If they cross each other at a distance of 130 km from one of the destinations, what is the ratio of their speeds?

When the speed is increased by 4 kmph, it takes 4 hours less to cover a distance of 32km. Find the previous speed.

A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train-

A delivery cart went from Candle ford to Lark Rise and back at an average speed of 2/3 miles per hour. If the distance from Candle ford to Lark Rise is 1 mile and the trip back took half as much time as the trip there, what was the average speed of the delivery cart on the way to Lark Rise?

A train 240m long passed a pole in 24 seconds. How long will it take to pass a platform 650m long?

Sue planted 4 times as many apple seeds as she planted orange seeds 15% of the apple seeds grow into trees and 10% of the orange seeds grew into trees. If a total of 420 apple trees and orange trees grew from the seeds, how many orange seeds did Sue plant? 

On Tuesday Ray rode his bike 10 miles, On Wednesday he increased Tuesday's distance by 5 miles. On Thursday he decreased Wednesday's distance by 7 miles. On Friday he increased Thursday's by 12 miles. How many total miles did Ray ride over the 4 day period?

A man can row 6 km/hr in still water. If the speed of the current is 2 km / hr. It takes 3 hrs more in upstream than in the downstream for the same distance. The distance is -

A train 150 meter long and running at a speed of 60 km per hour takes 30 seconds to cross a bridge. What is the length of the bridge?

A train starts from city Y at 2 PM and travels towards city X at 75 km/hr. Another train starts from city X at 1 PM and travels towards Y at 60 km/hr. If the distance between theses two cities is 330 km then at what time will they meet ? 

A man can row 12 kmph in still water. It takes him thrice as long to row up as to row down the river. Find the rate of the stream-

Mr. Farhan and Mr. Rafiq start walking in the park along a circular track from opposite directions at 6:30 am. If they walk at speeds of 2 rounds per hour and 3 rounds per hour respectively, how many times will they cross each other by 8.00 am?

A man travels a certain distance at a rate of 20 miles an hour and returns at the rate of 30 miles an hour. What is his average speed?

A train 150m long passes a pole in 15 seconds and crosses another train of the same length travelling in opposite direction in 8 seconds. The speed of the second train in (km/h) is -

A man traveled a distance of 61 km in 9 hours. He traveled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance (in km) traveled on foot?

A motorist travels to a place 150 km away at in average speed of 50 km and returns at 30 km per hour. His average speed for the whole journey in km per hour is: