The ratio of the speed of boat in still water to the speed of stream is 16 :5. A boat goes 16.5 km in 45 minute upstream. Find the time taken by boat to cover the distance of 175 km downstream.

A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train...

A train 125 m long passes a person, running at 8 km/hr in the same direction in which the train is going in 25...

There are two numbers, 1 number is 12 more than the 2"d number. The average of the two numbers is 19. If 2 is...

Sum of 4 consecutive even number is greater than three consecutive odd numbers by 81.If the sum of the least o...

A number is as much greater than 36 as is less than 86.Find the number

If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work in 4 days,how much will A get if both wo...