Quantitative Aptitude - Arithmetic Ability Questions

If the circum radius of the equilateral triangle is 12 cm then what is the value of in radius (in cm) of the triangle?

Which pair is not similar to the other three?

If Tan A = 15/8 and Tan B = 7/24, then Tan (A - B) = ?

What least number must be added to 213, so that the sum is completely divisible by 9?

Suppose that the medians BD, CE and AF of a triangle ABC meet at G. Then AG: GF is

Find the least number that must be subtracted from 98534, to get a number exactly divisible by 824.

Simple interest on a sum of Rs 6800 for 18 months is Rs 2244. What is the rate (in percentage) of interest per annum?

The square root of 5776 is