A number theory problem by A Former Brilliant Member

Number Theory Level 1

There are 30 girls and 50 boys in a classroom. Determine the probability of selecting a boy at random?


The answer is 0.625.

A Former Brilliant Member by A Former Brilliant Member

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1 solution

P = number of boys/number of boys and girls = 50/80 = 5/8 = 0.625

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