Quantitative Aptitude - Arithmetic Ability Questions

The number of diagonals in a pentadecagon is

The length of shadow of a tower is √3 times that of its length. The angle of elevation of the sun is

The perimeter of two similar triangles is 36 units and 48 units. Find the ratio of their corresponding areas.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The simple interest on a sum is 5/9 of the principal for 25 years. What is the rate (in percentage) of interest per annum?

Which of the following numbers is completely divisible by 99?

The smallest of the fractions among 5/8, 3/4, 13/16, 7/12 is ___.

182/130 when written in the simplest form is: