After filling the car's fuel tank, a driver drove from P to Q and then to R. He used 2/5 of the fuel driving from P to Q. if she used another 7 gallons to drive from Q to R and still had 1/4 of the tank full, what is the capacity of the tank in gallons?

A train went 300 miles from X to Y at an average speed of 80 mph. At what speed did it travel on the way back...

What is the largest number of apples not exceeding 440 that can be distributed among three persons in the prop...

A man has to go 10 km to catch a bus. He walks part of the way at 7 km/hr and runs the rest of the way at 12 k...

A rectangular carpet measuring 16 m by 12 m (excluding the border) has a border of width 2m on each of its sid...

A certain sum of money consists of 30 coins, some of which are 10 paisa coins and the rest are 5 paisa coins....

A wholesaler sells goods to a retailer at a profit of 20%. The retailer sells to the customer.who pays 80% mor...