Match the Marketing Management philosophies given in Column I with their main focus given in Column II:
Column I | Column II |
1. Production concept | (i) Customers’ needs |
2. Product concept | (ii) Quality, performance and features of product |
3. Marketing concept | (iii) Customers’ needs and societal well-being |
4. Societal marketing concept | (iv) Quantity of product |
Choose the correct option from the following:
If \[ A = \begin{bmatrix} 1 & 2 & 0 \\ -2 & -1 & -2 \\ 0 & -1 & 1 \end{bmatrix} \] then find \( A^{-1} \). Hence, solve the system of linear equations: \[ x - 2y = 10, \] \[ 2x - y - z = 8, \] \[ -2y + z = 7. \]