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

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

A trader marked the price of a article 30% above the cost price and gave the buyes 10& discount on market pric...

The length and breadth of a square of a are increased by 40% and 30% receptively. The area of the resulting re...

Threee boys have marbles in the ratio of 19:5:3. If the boy with the least number has 9 marbles, how many marb...

A circular wheel 28 inches in diameter rotates the same number of inches per second as a circular wheel 35 inc...

A, B C center into partnership with investments in the ratio of 5:7:8. If at the end of the year A's share of...