CAPE Pure Mathematics Unit 2 · May/June 2017 · Paper 1 · Question Q41

A bag contains 6 blue balls and 4 red balls. Terry chooses 2 balls at random from the bag without replacement. The probability that BOTH balls are red is

1. (A)\frac{4}{10} \times \frac{3}{9}
2. (B)\frac{6}{10} \times \frac{3}{9}
3. (C)\left(\frac{6}{10} \times \frac{4}{9}\right) + \left(\frac{4}{10} \times \frac{3}{9}\right)
4. (D)\left(\frac{6}{10} \times \frac{4}{9}\right) \times \left(\frac{4}{10} \times \frac{3}{9}\right)