Quantitative Aptitude - Arithmetic Ability Questions

If 2x + 3y = 0 and 3x ­- 4y = 34, then x ­- y = ______

If a + b = 10 and ab = 21, then the value of (a - b)2 is

In the given figure, O is the centre of the circle and QOR = 50 deg, then what is the value of RPQ (in deg) ?

At 30% discount the selling price of an article is Rs 1050. What is the selling price (in Rs) if the discount is 15%?

If(x + y)2 = xy + 1 and x3 – y3 = 1, then what is the value of x – y?

What is the difference between 0.6 and 0.6%?

If a – b = 11 and ab = 24, then value of a2 + b2 is

Between 50 and 150 how many numbers are divisible by 7?