Quantitative Aptitude - Arithmetic Ability Questions

Which of the following fractions is largest?

The angles of elevation of the top of a tower 72 metre high from the top and bottom of a building are 30° and 60° respectively. What is the height (in metres) of building?

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 radius of a wire is decreased to one-third. If volume remains the same, length will increase by

The centroid of a triangle is the point where

Find the number which is NOT a prime number.

The length of the radius of a circle with centre O is 5 cm and the length of the chord AB is 8 cm. The distance of the chord AB from the point O is

After buying a toy for Rs.45, Raghu managed to sell it at a profit of 15%. The selling price of the toy was