निम्नलिखित

The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:

If (a + b + c) = 18 and (ab + bc + ca) = 100, then find the value of (a² + b² + c²).

105, 111, 123, 141, ?, 195

If, 4x² + y² + 12x + 6y + 18 = 0, then find the value of (2x + y)/(y + 6x).

Suppose xy = -15 and (x² + y²) = 34, then determine the value of (x – y).

√4096 + √(?) + 13 – 29 = 148 

If  x = 19 , find x ⁵ - 20  x ⁴ + 20  x ³ - 20x ² + 20x  - 20 = ?

(m - 4) ² + (n + 5) ² + (p - 3) ² = 0, then find the value of 2m + 3n - p.