Question

A box contains 25 tickets numbered 1, 2,... 25. If two tickets are drawn at random then the probability that the product of their numbers is even is

• A. 11/50
• B. 13/50
• C. 37/50
• D. None of these

Answer 1

Answer: (C)

37/50

Answer 2

Required probability is 1 – P (both odd numbers are

chosen) = 1 - $\frac{13C_{2}}{25C_{2}} = 1 - \frac{13.12}{25.24} = \frac{37}{50}$