Question

Meena calculates that the probability of her winning the first prize in a lottery is 0.08. If total 800 tickets were sold, the number of tickets bought by her, is ______.

Options

• 64

• 640

• 100

• 10

Answer 1

Meena calculates that the probability of her winning the first prize in a lottery is 0.08. If total 800 tickets were sold, the number of tickets bought by her, is 64.

Explanation:

Given:

Probability of winning P(E) = 0.08

Total tickets sold = 800

Let the number of tickets bought by Meena be x.

P(Winning) = `"Number of tickets bought"/"Total number of tickets sold"`

`0.08 = x/800`

Multiply both sides by 800:

x = 0.08 × 800

`x = 8/100 xx 800`

x = 8 × 8

x = 64

The number of tickets bought by her is 64.