Community mocks

Clavis TMUA Set A Paper 1 · Q18

Paper 1Probability

A bag contains 33 red counters and 22 blue counters.

Two counters are removed at random, one after the other, without replacement.

Given that the second counter removed is red, find the probability that the first counter removed is red.

A310\frac{3}{10}
B25\frac25
C12\frac12
D35\frac35
E23\frac23
F34\frac34

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