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A bag contains eight white and six red marbles. The probability of drawing two marbles of same colour is
$$\frac {8c_2.6C_2}{14c_2}$$
$$\frac {8c_2}{14c_2} + \frac {6c_2}{14c_2}$$
$$\frac {8c_2.6C_2}{14c_2.14c_2}$$
$$\frac {8c_2}{14c_2} + \frac {6c_2}{12c_2}$$
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