There are 3 green , 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is probability of having either a green or a white bulb?

A 2/3
B 3/4
C 4/3
D 2/5

Correct Answer: 2/3

Given, Green = 3 Orange = 4 White = 5 Total = 12 Either a green and white = 8 ∴ Probability = 812  = 23
Bissoy MCQ
#গণিত #সম্ভাব্যতা (Probability) #Janata Bank Ltd #এসিস্ট্যান্ট এক্সিকিউটিভ অফিসার ২৯.১১. ২০১৯

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A 4/6
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A 1/3
B 1/21
C 2/21
D 5/21
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