Quantitative Aptitude - Arithmetic Ability Questions

The height of a cone is 24 cm and the area of the base is 154 cm2 . What is the curved surface area (in cm2) of the cone?

The simple interest on a sum is 7/8 of the principal for 5 years. What is the rate (in percentage) of interest per annum?

The copper wire when bent in the form of a square encloses an area of 121 cub.cm. If the same wire is bent into the form of a circle, find the area of the circle.

If triangle ABC = triangle XYZ and angle BAC = 55 deg, then angle ZXY = ?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 22472, and Rs 23820.32 respectively, what is the rate of interest?

The amount of extension in a spring is proportional to the weight hung on it. If the weight of 5 kgs produces an extension of 0.4 cm, what weight would produce an extension of 5cm?

If the sum of the interior angles of a regular polygon is 1260 deg , then how many sides does it have?

The compound interest on Rs. 4000 for 4 years at 10% per annum will be