Question

A shop sells 10 lights out of which 3 are defective. Salman buys four lights.
Find the probability that at least two of the lights that he buys work.
a) 29/30
b) 34/35 c) 14/15 d) 24/25 e) 21/25​

Answer 1

Answer:

Answer option c is correct.

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Answer 2

Answer:

a) 29/30............