Quantitative Aptitude - Arithmetic Ability Questions

What should be added to 8(3x - ­4y) to obtain 18x ­- 18y?

Given: 5x -3(2x-7) > 3x - 1 < 7 + 4x; then x can take which of the following values?

The sum of all prime numbers between 18 and 32 is:

There are two numbers such that the first number is half of the second number. If their average is 57, then what is the first number?

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

When Gopal walks from A to B and returns from B to A on cycle, then it takes him 46 minutes. By walking both ways, it takes him 75 minutes. If he rides cycle both ways then what will be the total time (in minutes)?

Present ages of Rahul and his brother are in the ratio of 5 : 3. After 4 years ratio of ages of Rahul’s brother and his sister will be 5 : 6. If the present age of his sister is 26 years, then what will be the age (in years) of Rahul 3 years from now?

Which of the following equations has real and distinct roots?