alleryOne card is drawn from a pack of 52. The probability that it is a spade or an ace is:
A17/52 of draws
B16/52 of draws
C13/52 of draws
D20/52 of draws
Answer & Solution
Correct answer: B. 16/52 of draws
1. P(spade) = 13/52 and P(ace) = 4/52.
2. The ace of spades is counted in both, so subtract P(both) = 1/52.
3. P = 13/52 + 4/52 - 1/52 = 16/52, which is 4/13.
_Source: syllabus Mathematics, Ch 14 'Probability' (kemh114)_
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