Quantitative Aptitude - Arithmetic Ability Questions

A number exceeds its 1/6 by 30. What is the number?

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

The mean of a distribution is 18 and the standard deviation is 4.5. What is the value of the coefficient of variation?

Select the odd word/letters/number/number pair from the given alternatives.

The simple interest on a certain sum of money invested at a certain rate for 2 years amounts to Rs. 1200. The compound interest on the same sum of money invested at the same rate of interest for 2 years amounts to Rs. 1290. What was the principal?

Present ages of Sai and Satheesh are in the ratio of 5:4 respectively. Three years hence, the ratio of their ages will become 11:9 respectively. What is Satheesh's present age in years?

O is the centre of the circle and ∠AOB = 150°, and the shaded portion is x part of the circular region, then x = ?

In the given figure, P  is the center of the circle. If QS = PR, then what is the ratio of angles RSP to the TPR ?