There is 50% chance that Rafiq will go to a fast-food restaurant for lunch and 50% chance that he will skip lunch. If he goes to a fast-food restaurant there is 60% chance that he will take only a sandwich and nothing else. If he decides not to take a sandwich, he will take a burger or a chicken pie. What is the probability that he will take a burger?
Explanation: fast food restaurant এ খাওয়ার probability = 1/2. Restaurant এ গিলে sandwich না নেয়ার probability = \(1/2 \times 2/5 = 1/5\). Since, the probability of taking a burger is not stated, the calculation cannot be done. Correct Answer (E)
