Question

A page is selected at random from a book. The probability that the digit at units place of the page number chosen is less than 7 is

Options

• `3/10`

• `7/10`

• `3/9`

• `7/9`

Answer 1

`7/10`

Explanation;

Hint:

Here n(S) = 10 ...(given digit at limit place. It has two digit)

n(A) = 7

P(A) = `("n"("A"))/("n"("S")) = 7/10`