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CBSE Notes 2011-2012 » VIII-Maths

Direct and Inverse Proportions

If a train 120 m long crosses a man in 15 seconds. Then the speed of the train is

Multiple choice question

If a train 120 m long crosses a man in 15 seconds. Then the speed of the train is

A train is running at a speed of 90 km/hr, crosses a pole in 10 seconds. The length of the train is

Multiple choice question

A train is running at a speed of 90 km/hr, crosses a pole in 10 seconds. The length of the train is

x and y are in inverse proportion. If y = 15 when x = 3, then the value ofy when x = 9, is

Multiple choice question

x and y are in inverse proportion. If y = 15 when x = 3, then the value ofy when x = 9, is

x and y are in direct variation. I f y = 10 when x - 5, then value of y when x = 10, is

Multiple choice question

x and y are in direct variation. I f y = 10 when x - 5, then value of y when x = 10, is

14 pumps of equal capacity can fill a tank in 6 days. If the tank has to be filled in 4 days, then t...

Multiple choice question

14 pumps of equal capacity can fill a tank in 6 days. If the tank has to be filled in 4 days, then the number of extra pumps needed, are

A certain number of men can finish a piece of work in 100 days. If however, there were 10 men less, ...

Multiple choice question

A certain number of men can finish a piece of work in 100 days. If however, there were 10 men less, it would take 10 days more for the work to be finished. How many men were originally there ?

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