Question

Kamalam went to play a lucky draw contest. 135 tickets of the lucky draw were sold. If the probability of Kamalam winning is `1/9`, then the number of tickets bought by Kamalam is

Options

• 5

• 10

• 15

• 20

Answer 1

15

Explanation;

Hint:

n(S) = 135

P(A) = `1/9`

`("n"("A"))/("n"("S")) = 1/9`

⇒ `("n"("A"))/135 = 1/9`

n(A) = `135/9`

⇒ = 15