Quantitative Aptitude - Arithmetic Ability Questions

If x2+1x2-6, then find the value of 2x(x-1)x3-x2-x+1

Sonam's age after eight years will be half of her father's age. Eight years ago the ratio of their ages was 1 : 3. Find the present age of Sonam's father.

Find the mean and mode of the numbers 1, 9, 5, 4, 2, 1, 9, 9, 2, 1, 9, 1, 2, 1?

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?

If a4 + 1 = [a2 /b2 ] (4b2 – b4 – 1), then what is the value of a4 + b4?

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

If (9 - 3x) - (17x - 10) = -1, then the value of x is

If (8 - 10x) - (13x - 2) = -9, then the value of x is