Question

A box contains 99 green marbles and 1212 white marbles. If the first marble chosen was a green marble, what is the probability of choosing, without replacement, a white marble? Express your answer as a fraction or a decimal number rounded to four decimal places.

Answer 1

0.9252

Explanation:

Adding the two together 1212 + (99 - 1)

1310

1212/1310 = 606/655

Decimal: 0.9252

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