Quantitative Aptitude - Arithmetic Ability Questions

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

If PA and PB are two tangents to a circle with centre O such that ∡APB = 80°. Then ∡AOP = 

Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh completes rest of the work in 3 days. How many days Suresh alone can take to complete the whole work ?

If M = 0.1 + (0.1)2 + (0.01)2 and N = 0.3 + (0.03)2 + (0.003)2, then what is the value of M + N?

Simplify (533bxaz)/(41ab)

Expand and simplify (x + 5)2 + (x - 3)2

What is the equation of the line perpendicular to the line 5x + 3y = 6 and having Y-intercept -3?

If a -­ b = 6 and ab =16, then a3 -­ b3 is