A train went 300 miles from City X to City Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?

If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+...

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

Business Partners, A, B and C agree to divide their total profit for the year in the ratios 4 : 7 : 8 respecti...

Two-third of the faculty members of a department are female. Twelve of the male teachers are unmarried, while...

A train passes city X at 9.55 am and city Y at 10.15 am. The distance between cities X and Y is 45 miles. What...

A carpet that measures 6 ft by 8 ft covers 60% of a floor. What is the area of the floor?