Quantitative Aptitude - Arithmetic Ability Questions

The sum of three consecutive even integers is 84. Which is the least integer among them?

Find the sum of the measures all the interior angles of a polygon having 12 sides.

 In ΔDEF measure of angle E is 90 deg. If tanD = 4/3, and DE = 6cm, then what is the length (in cm) of side EF?

The average of 10 numbers is 30. If at the time of calculation one number was wrongly taken as 36 instead of 69, then what will be the correct average?

A shop keeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of cost price to the printed price of the book is

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

The square root of 5776 is

Which of the following is the CORRECT option for the triangles having sides in the ratio of 3:4:6?