Quantitative Aptitude - Arithmetic Ability Questions

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)?

If 'Q ' means ' +', 'J ' means ' X',T ' ' means '- ' and 'K ' means '÷ ', then what is the value of18K3Q7J ?

If a - b = -1 and ab = 6, then what is the value of a3- b3?

Find the odd words/letters/number from the given alternatives.

Select the odd number from the given alternatives.

If tan2A - tan2B = x, then the value of x is

If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is

A dealer marks his goods 20% above cost price. He then allows some discount on it and makes a profit of 8%. The rate of discount is