निम्नलिखित शब्दों

What is the average salary of 10 officers , if a clerk’s salary is Rs. 15,000?

If the roots of the quadratic equation 7y² + 5y + 9 = 0 are α and β, then find the value of [(1/α) + (1/β)].

I. 2x² - 12x + 16 = 0    

II. 4y² - 8y  - 12 = 0    

Find the coefficient of x³ in (2x − 3)⁶.

I. 2y² + 31y + 99 = 0

II. 4x² + 8x – 45 = 0

I. 6x² + 19x + 10 = 0

II. y² + 10y + 25 = 0

I. 6x² + 23x + 10 = 0

II. 2y² - 3y - 5 = 0

I. 3y² + 16y + 16 = 0

II. 2x² + 19x + 45 = 0

I. 3x² – 17x + 10 = 0

II. y² – 17y + 52 = 0

I. 4x² + 3√7 x-7 =0

II. 7y² + 4√7 y-5=0