Quantitative Aptitude - Arithmetic Ability Questions

If x +y = √3 and x - y = √2, then the value of 8xy (x2 + y2) is

For what value of k, the expression x6– 18x3 + k will be a perfect square?

Δ DEF is right angled at E. If m∠F = 45, then what is the value of Sin F x Tan F?

There is a three digit number. The digit at the tenth place is 3. If the place of all the digits are replaced with each other symmetrically about the tens position,then the new number obtained is 396 more than the original three digit number. The sum of the digits at unit & hundredth place is 14. Find out the original number?

In the following question, select the odd word from the given alternatives.

The volume of a spherical balloon is increased by 700%. What is the percentage increase in its surface area?

In a class of 39 students there are 26 girls. The average weight of these girls is 42 Kgs and average weight of the full class is 48 kgs. What is the average weight (in kgs) of the boys of the class?

Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is