A dart is randomly thrown at a circular board on which two concentric rings of radii R and 2R having the same width (width much less than R) are marked. The probability of the dart hitting the smaller ring is:

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Mathematics · Probability

A dart is randomly thrown at a circular board on which two concentric rings of radii R and 2R having the same width (width much less than R) are marked. The probability of the dart hitting the smaller ring is:

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half of the probability that it hits the larger ring.

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Answer 1

one-fourth the probability that it hits the larger ring.

Answer 2

four times the probability that it hits the larger ring.

Answer 3

half of the probability that it hits the larger ring.

Answer 4

twice the probability that it hits the larger ring.

A dart is randomly thrown at a circular board on which two concentric rings of radii R and 2R having the same width (width much less than R) are marked. The probability of the dart hitting the smaller ring is:

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A dart is randomly thrown at a circular board on which two concentric rings of radii R and 2R having the same width (width much less than R) are marked. The probability of the dart hitting the smaller ring is:

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