Quantitative Aptitude - Arithmetic Ability Questions

The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?

The HCF of 24, 60 and 90 is:

What is the reflection of the point (-4, 3) in the line x = -2?

The area of a semicircle is 1925 sq.cm. Calculate its perimeter (in cm).

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

7 litres mixture of milk and water contains 30% water. 3.5 litres of milk is added to this mixture. What is the percentage of water in the new mixture?

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

For what value of 'y', x2 + 112x + y2 is a perfect square?