Who was appointed as the chairman and managing director

If x = 15, find x⁵ - 16x⁴ + 16x³ - 16x² + 16x - 16 = ?

If ( m+n  ) : √ (mn) = 4, m>n  , Then find the value of m : n ?

If √e + (1/√e) = 10, then find the value of e + (1/e).

If tan x + cot x  = 7, find  tan³ x + cot³ x = ?

‘a’ is directly proportional to ‘b’. If at a=30, the value of ‘b’ is 20% greater than ‘a’, then find the value of ‘a’ when b=54.

If for non-zero x, x² - 4x - 1 = 0, what is the value of x² + 1/x²?

If x : y : z = 3 : 5 : 8, and (6x + 3z) = 168, then find the value of 2y.

If 10% of 24% of x is 240, then x = ?

If (a + b) = 1 and (1/a) – 2b = 5/a then find the value of a² + b².