Quantitative Aptitude - Arithmetic Ability Questions

Which of the following numbers is not a prime number?

Simplify x5 ÷ x43 ÷ x

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?

In what ratio does the point T(x,0) divide the segment joining the points S(-4,-1) and U(1,4)?

In ΔABC, ∠B is right angle, D is the mid point of the side AC. If AB = 6 cm, BC = 8cm, then the length of BD is

The diagonals are congruent in a _____.

Which of the following condition is True about the similarity of triangle ABC & DEF given below?

ΔPQR is right angled at Q. If m∠R = 60o, then find the value of (secP - 1/√3)