Sum of roots of quadratic equation px² - qx + r = 0 is _____?

q/p

p/q

r/p

None of these

For a quadratic equation in the form of ax² + bx + c = 0, the sum of the roots is given by -b/a.

Given the equation px² - qx + r = 0:

Step 1: Identify a and b

a = p, b = -q

Step 2: Calculate the sum of roots

Sum of roots = -(-q) / p

= q / p