The respective ratio between the speed of a speed of the car, bus and train is 5 : 9 : 6. The average speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?

A, B and C are partners of a company During a particular year A received one- third of the profile. B received...

The average are of a group of 15 employing is 24 years, If 5 more employees join the group., the average age i...

Rahim can now 16 km/hr in still water. It takes her thrice as long to row up as to row down the river. Find th...

A train leaves a station A at 7 am and reaches another station B at 11 am. Another train leas B at 8 am and re...

A train 150 m long crosses a milestone is 15 seconds and crosses another train of the same lengh travelling in...

There are 2 numbers in the ratio of 4:5. If 4 is subtracted from both numbers the ration becomes 3:4 . What wi...