Quantitative Aptitude - Arithmetic Ability Questions

The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the ratio of radius of incircle and circumcircle for an equilateral triangle with an area of 22√3 sq. units?

If 22, x, 88 are in a continued proportion, find the value of x.

A sum of Rs 6000 becomes Rs 7200 in 2 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 3 years?

If the selling price is Rs 1680 after getting a discount of 16%, what was the marked price?

3cosA is equal to

If x + 3 ≤ 4x + 4 and 5(4 -­ x) ­- 4 ≥ 5x - ­2; then