NCERT Miscellaneous Exercise Q7 - Probability
Question: Chance of a heart attack is 40%. Meditation/yoga reduces the risk by 30% and a certain drug by 25%. A patient chooses either option with equal probability and later has a heart attack. Find the probability that the patient followed meditation and yoga.
Answer: 14/29.
Full step-by-step NCERT solution with diagrams on Something by Zero.