A car goes 15 km on a gallon of octane when it is driven at 50 km/h. When the car is driven at 60 km/h, it only goes 80% as far. How many gallons of octane are needed to travel 200 km if half the distance is traveled at 50 km/h and the rest 60 km/h?

A manufacturer sells three products i.e A, B and C. Product A costs 200 and sells for 250, Product b costs 150...

One third of the faculty members of a department are female. Sixteen of the male teaches unmarried while 60% o...

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

If an integer y is subtracted from an integer x, and the results than x, than y must be___

A train went 300 km city X to City at an average speed of 10 km/h. At what speed did it travel on the way back...

If a, b and c are 3 conscutive integers and a> b> c, which of the following has the maximum value?