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## In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race,

Practice Ratio and Proportion – In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:

## There are two pipes A and B. If A filled 10 liters in hour B can fills 20 liters

Practice Races and Games – There are two pipes A and B. If A filled 10 liters in hour B can fills 20 liters in same time. Likewise B can fill 10, 20, 40, 80,160. If B filled in (1/16) th of a tank in 3 hours, how much time will it take to fill completely?

## Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minu

Practice Races and Games – Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutes respectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?

## A cistern can be filled by a tap in 4 hours while it can be emptied by another t

Practice Races and Games – A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both taps are opened simultaneously, then after how much time will the cistern get filled ?

## A pump can fill a tank with water in 2 hours. Because of a leak, it took hours

Practice Races and Games – A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in:

## One pipe can fill a tank three times as fast as another pipe. If together the t

Practice Races and Games – One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 min, then the slower alone will be able to fill the tank in:

## Two pipes A and B can fill a cistern in 20 and 30 minutes respectively, and a th

Practice Races and Games – Two pipes A and B can fill a cistern in 20 and 30 minutes respectively, and a third pipe C can empty it in 40 minutes. How long will it take to fill the cistern if all the three are opened at the same time?

## Two taps can separately fill a cistern 10 minutes and 15 minutes respectively an

Practice Races and Games – Two taps can separately fill a cistern 10 minutes and 15 minutes respectively and when the waste pipe is open, they can together fill it in 18 minutes. The waste pipe can empty the full cistern in?

## Two pipes can fill a tank in 10 hours and 12 hours respectively while a third, p

Practice Races and Games – Two pipes can fill a tank in 10 hours and 12 hours respectively while a third, pipe empties the full tank in 20 hours. If all the three pipes operate simultaneously, in how much time will the tank be filled?

## It takes 30 minutes to empty a half-full tank by draining it at a constant rate.

Practice Races and Games – It takes 30 minutes to empty a half-full tank by draining it at a constant rate. It is decided to simultaneously pump water into the half-full tank while draining it. What is the rate at which water has to be pumped in so that it gets fully filled in 10 minutes?

## An empty tank be filled with an inlet pipe A in 42 minutes. After 12 minutes an

Practice Races and Games – An empty tank be filled with an inlet pipe A in 42 minutes. After 12 minutes an outlet pipe B is opened which can empty the tank in 30 minutes. After 6 minutes another inlet pipe C opened into the same tank, which can fill the tank in 35 minutes and the tank is filled. Find the time taken to fill the tank?

## A pump can be used either to fill or to empty a tank. The capacity of the tank i

Practice Races and Games – A pump can be used either to fill or to empty a tank. The capacity of the tank is 3600 m. The emptying capacity of the pump is 10 m 3/min higher than its filling capacity. What is the emptying capacity of the pump if the pump needs 12 more minutes to fill the tank than to empty it?

## Pipe A usually fills a tank in 2 hours. On account of a leak at the bottom of th

Practice Races and Games – Pipe A usually fills a tank in 2 hours. On account of a leak at the bottom of the tank, it takes pipe A 30 more minutes to fill the tank. How long will the leak take to empty a full tank if pipe A is shut?

## A tank is fitted with 8 pipes, some of them that fill the tank and others that a

Practice Races and Games – A tank is fitted with 8 pipes, some of them that fill the tank and others that are waste pipe meant to empty the tank. Each of the pipes that fill the tank can fill it in 8 hours, while each of those that empty the tank can empty it in 6 hours. If all the pipes are kept open when the tank is full, it will take exactly 6 hours for the tank to empty. How many of these are fill pipes?

## A tap supplies 8 litres of water per minute into a cistern. A leak at the bottom

Practice Races and Games – A tap supplies 8 litres of water per minute into a cistern. A leak at the bottom of the cistern can empty the cistern in 10 hours. A full tank with the tap open is emptied by the leak in 15 hours. What is the capacity of the tank?