Quantitative Aptitude - Arithmetic Ability Questions

There are 10 dozen apples, 15 dozen mangoes and 20 dozen oranges for selling. If 1/2, 1/3 and 1/4 of them are sold respectively. How many of the total fruits are remaining?

Find a two digit number which is exactly three times the product of its digits?

If a3 + a - 1 = 0 then find the value of a6 + a4 + a - 2

An angle is thrice its complementary angle. What is the measure of the angle?

If X2+4y2+z2-4x-2z+5-0, then find the value of y15+x5z14

The sum of two numbers is 25 and sum of their square is 313. Calculate the numbers.

Which of the following equations has 3 as a root?

Simple interest on a certain sum of money for 3 years at 18% per annum is half the compound interest on Rs. 9000 for 2 years at 10% per annum. The sum placed on simple interest is: