Quantitative Aptitude - Arithmetic Ability Questions

A certain sum when invested at 5% interest compounded annually for 3 years yields an interest of Rs.2522. Find the Principal?

Which of the following is the largest number among 2, 33, 4, 53

In the following question, select the missing number from the given series.
 
1912, 2012, 2133, 2277, 2446, ?

Two smaller circles touch a large circle internally and pass through the center O of the larger circle. If the diameter of the bigger circle is 28 cm, thenwhat is the area of the bigger circle which is not enclosed by the two smaller circles (in sq.cm)?

If the diameter of a sphere is 14 cm, then what is the surface area (in sq.cm) of the sphere?

Rs. x invested at 8% simple interest per annum for 5 years yields the same interest as that on Rs. y invested at 7.5% simple interest per annum for 6years. Find x : y.

What is the reflection of the point (-4, 3) in the line x = -2?

An inverted conical shaped vessel is filled with water to its brim. The height of the vessel is 8 cm and radius of the open end is 5 cm . When a few solid spherical metallic balls each of radius 1⁄2 cm are dropped in the vessel , 25% water is overflowed. The number of balls is: