In a lottery with 10 prizes and 25 blanks, what is the probability of drawing a prize? Option 1: 1/10 Option 2: 3/10 Option 3: 2/5 Option 4: 2/7

Answer: 2/7. Solution: Total tickets = 10 + 25 = 35. Favourable outcomes = 10. P = 10/35 = 2/7. The common error is using 25 as the total.

Quantitative Reasoning

Probability

Easy

In a lottery with 10 prizes and 25 blanks, what is the probability of drawing a prize?

1/10

3/10

2/5

2/7

✅ Correct Option: 4

Total tickets $= 10 + 25 = 35$ . Favourable outcomes $= 10$ .

$P = \dfrac{10}{35} = \dfrac{2}{7}$ . The common error is using 25 as the total.

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