- A
- B
- C
- D
Step-by-Step Solution
Working bulbs = 144 - 18 = 126, so is the probability that the bulb is faulty - the complement; and come from cancelling wrongly.
Answer: A)
A carton of 144 LED bulbs sent to a Coimbatore shop is tested and 18 bulbs do not light up. The shopkeeper takes one bulb from the carton at random. What is the probability that it works?
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