For any two real numbers a and b.

a-b2+b-a2 is

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

The profit (in Rs.) after selling an article for Rs.524 is the same as the loss (in Rs.) after selling it for Rs.452. The cost price of the article is:

Ravi has a roadmap with a scale of 1.5 cm for 18 km. He drives on that road for 72 km. What would be his distance covered in that map.

A watch is listed for Rs.230 and is sold at a discount of 12%, then the sale price of the watch is

The diagonal of a cube is 192 cm. Its volume in cm3 will be 

A and B together can do a piece of work in 12 days while A alone can do the same work in 30 days. B alone can do it in

Find equation of the perpendicular bisector of segment joining the points (2,-5) and (0,7)?

If (secA - tanA)2 = x, then the value of x is