Step 1: Identifying the production values.
Let the production of Ludo in 1992 be \( P_{1992} \) and in 1994 be \( P_{1994} \).
Step 2: Percentage decrease formula.
\[ {Percentage Decrease} = \frac{P_{1992} - P_{1994}}{P_{1992}} \times 100 \]
Step 3: Substituting values and calculating.
Using the given values, we get: \[ {Percentage Decrease} = \frac{X - Y}{X} \times 100 \] Computing the values, we find that the drop is 10%. Thus, the correct answer is (D) \( 10 \).
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.
Two persons are competing for a position on the Managing Committee of an organisation. The probabilities that the first and the second person will be appointed are 0.5 and 0.6, respectively. Also, if the first person gets appointed, then the probability of introducing a waste treatment plant is 0.7, and the corresponding probability is 0.4 if the second person gets appointed.
Based on the above information, answer the following