Quantitative Aptitude - Arithmetic Ability Questions

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

Common factor of 12a4b6, 18a6c2, 36a2b2 is

If cos 45° - ­ sec 30° = x, then value of x is

What is the value of (cos45° + 1/3) ?

If the sum of the measures of all the interior angles of polygon is 2340°. What is the number of sides of the polygon?

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by

Rohan sells two articles. The cost price of the first article is equal to the selling price of the second article. The first article is sold at a profit of 40% and the second article is sold at a loss of 40%. What is the ratio of the selling price of the first article to the cost price of the second article?

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 25088 in 2 years?