Match List-I with List-II
| List-I (Principle of Management) | List-II (Explanation) |
|---|---|
| (A) Unity of Command | (I) Employees should receive orders from one superior only |
| (B) Unity of Direction | (III) Each group of activities with the same objective must have one head and one plan |
| (C) Scalar Chain | (II) The line of authority from the highest to the lowest ranks in the organization |
| (D) Division of Work | (IV) The work assigned to each worker should be clearly defined and clarified |
Four students of class XII are given a problem to solve independently. Their respective chances of solving the problem are: \[ \frac{1}{2},\quad \frac{1}{3},\quad \frac{2}{3},\quad \frac{1}{5} \] Find the probability that at most one of them will solve the problem.