Quantitative Aptitude - Arithmetic Ability Questions

The lengths of the two diagonals of a rhombus are 5 cm and 12 cm. Find its area (in cm2)

A cylinder of radius 4.5 cm and height 12 cm just fits in another cylinder completely with their axis perpendicular. What is the radius (in cm) of second cylinder?

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?

A number is greater than 58 times its reciprocal by 3/4. What is the number?

The maturity value of a certain sum after two years at 20% p.a. interest compounded annually is Rs. 14,400/-. Find the Principal amount.

The mean of distribution is 11 and the standard deviation is 5. What is the value of the coefficient variation?

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 1,800, and Rs 1,926 respectively, what is the rate of interest?