Quantitative Aptitude - Arithmetic Ability Questions

If A% of A is 196, then what is the value of A?

Ajay can do a painting in 12 days. Amit is 70% more efficient than Ajay. What is the number of days Amit would need to finish the same painting?

A shopkeeper by selling 9 Rolex watches, earns a profit equal to the selling price of 4 Rolex watches. His profit percentage is

If the product of two numbers is 2646 and their LCM is 42 then their HCF is

The ratio of the weights of two spheres is 8 : 27 and the ratio of weights per 1 cc of materials of two is 8 : 1 . The ratio of the radii of the spheres is

If the edge of a cube is increased by 10%, then what will be the percentage increase in its volume ?

Find the odd word/letters/number from the given alternatives.

If x -­ y = 7 and xy = 32, then value of (x2 + y2) is