3 years ago

What is the probability that a randomly number from 20 to 30 is divisible by 3 and then divisible by 12 after replacing first

1 answer:

7 0

Probability of divisibility by3=4/11
probability of divisibility by 12 =1/11
probability of divisibility by 12 and 3=4/11×1/11
answer is 4/121

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