Statisticsmedium · Past Paper
From a set of cards numbered 1 to 20, one card is drawn. What is the probability that the number is a multiple of 3 or 7?
A8/20
B2/5
C9/20
D7/20
✓ Correct Answer: A — 8/20
Multiples of 3: 3, 6, 9, 12, 15, 18 (6). Multiples of 7: 7, 14 (2). Total = 8. P = 8/20 = 2/5.
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