Polytechnic Math Set 6
101. In a batch of 20 bulbs, 4 are defective. If a bulb is randomly selected from this batch, what is the probability that the bulb is defective? 1/5 1/20 4/5 None of these Answer: 1/20 102. If tan(A + B) = √3, tan(A – B) = 1/√3, and 0 < A + B ≤ […]
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