Quantitative Aptitude - Arithmetic Ability Questions

Simplify 0.1x0.1x0.1 + 0.3x0.3x0.30.3x0.3 - 0.3x0.1 + 0.1x0.1

A batsman makes a score of 111 runs in the 10th match and thus increases his average runs per match by 5. What will be his average after the 10th match?

Bipul is 16 years younger than Saibal. 12 years hence, Saibal's age will be 1.5 times that of Bipul. Saibal is now ___ years old.

If θ be positive acute angle and 5cosθ + 12sinθ = 13, then the value of cosθ is

Simple interest on a sum for 5 years is equal to 20% of the principal. In how many years interest will be equal to the principal?

A line passing through the origin perpendicularly cuts the line 3x - 2y = 6 at point M. Find M?

If sec -5π/4 = x, then the value of x is

The area of a square is 40.5 cm². Find the length of its diagonal (in cm).