Quantitative Aptitude - Arithmetic Ability Questions

If an equilateral triangle has side 12 cm, then what is the difference (in cm) between the circumradius and inradius?

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to Rs 250 less than the sum lent. What was thesum lent (in Rs)?

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

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

What is the value of 299996 x 300004?

9997 x 10003 = ?

If the difference between the roots of the equation Ax2 – Bx + C = 0 is 4, then which of the following is TRUE?

A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?