Quantitative Aptitude - Arithmetic Ability Questions

The age of Rakhi is twelve times that of her daughter Anubha. If age of Anubha is 3 years now, then what was the age of Rakhi, 2 years earlier?

What is the value of 2 - 2z + z22 + 2z - z2, when z+2z = 2 ?

If a3+1a3 = 2, then the value of a2+1a?

If 8x/3 + [7(5 - 2x/3)]/2 = 1/2 , then what is the value of x?

The sum of a fraction and 3 times its reciprocal is 37/10. What is the fraction?

Find the HCF & LCM of 16, 24.

If the loss of percent on article is 15%. Then the ratio of the cost price and sell price will be

In triangle PQR, A is the point of intersection of all the altitudes and B is the point of intersection of all the angle bisectors of the triangle. If ∠PBR =105°, then what is the value of ∠PAR (in degrees)?