Cards numbered 1 to 20 are placed in a box and mixed thoroughly. A card is drawn at random from the box. What is the probability that the card drawn bears a number which is a multiple of 3 or 5 or both? 1. 2. 3. 4.

Question

KnowledgeBoat · Accepted Answer

The cards are numbered from 1 to 20. Total number of outcomes = 20 Let E be the event of getting a number multiple of 3 or 5, then E = {3, 5, 6, 9, 10, 12, 15, 18, 20} The number of favorable outcomes to the event E = 9 P(E) = Hence, option 4 is the correct option.

Mathematics

Cards numbered 1 to 20 are placed in a box and mixed thoroughly. A card is drawn at random from the box. What is the probability that the card drawn bears a number which is a multiple of 3 or 5 or both? 1. 2. 3. 4.

Probability

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