Q26. A box of 600 bulbs contains 12 defective bulbs. One bulb is taken out at random from this box. Then the probability that it is non- defective bulb is:
Question
(A) 143/150
(B) 147/150
(C) 1/25
(D) 1/50
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Class 10 Maths
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2021-12-28T13:40:55+00:00
2021-12-28T13:40:55+00:00 1 Answer
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Answer ( 1 )
Answer: (B)
Explanation:
P (non-defective bulb) = 1 – P
(Defective bulb)
= 1 – (12/600)= (600 – 12)/600
= 588/600
= 147/150