Quantitative Aptitude - Arithmetic Ability Questions

What is the sum of a3+b3+c3-3abc, when the value of a=4, b=2 and c=-6?

Three numbers are in Arithmetic Progression (AP) whose sum is 30 and the product is 910. Then the greatest number in the AP is

The marked price of a shirt is twice of the cost price. To earn a gain of 25%, what should be the discount percentage?

Ganesh, Ram and Sohan together can complete a work in 16 days. If Ganesh and Ram together can complete the same work in 24 days. The number of days Sohan alone takes, to finish the work is

Two cyclists P and Q cycle at 20 km/hr and 25 km/hr towards each other. What was the distance (in kms) between them when they started if they met after 56 minutes?

The average (arithmetic mean) amount of savings of ten students is Rs. 600. Three of the students have no savings at all and each of the others have at least Rs. 250 including Nihar, who has exactly Rs. 1300. The largest amount, in Rs., that any one student could have is

On selling 25 shirts, a retailer earns profit equal to the cost price of 8 shirts. What is the profit percentage?

What is the value of cosec 3π/4?