Math, asked by arpita1321gmailcom, 1 year ago

a 9th class English book contains 200 pages a page is selected at random what is the probability that the number on the page is divisible by 10

Answers

Answered by kushagra0405
20
no of pages=200
pages divisible by10=20
probability =20/200
=1/10
=0.1@nswer
Answered by Agastya0606
3

Given:

A 9th class English book contains 200 pages. A page is selected at random.

To find:

The probability that the number on the page is divisible by 10.

Solution:

The probability of getting a number on the page which is divisible by 10 is 0.1 or 1/10.

To answer this question, we will follow the following steps:

As we know that probability of getting an outcome B or P(B) is equal to the number of favourable outcomes or n(B) divided by a total number of outcomes or n.

This means

P(B) = \frac{n(B)}{n}

Now,

As given, we have,

The total number of pages in the book = 200

or total number of outcomes = 200

Out of 200,

The number of pages which contains a number that is divisible by 10

 =  \frac{200}{10}

 = 20

So,

When a page is selected at random, the probability of getting a number on the page which is divisible by 10

 =  \frac{20}{200}

 =  \frac{1}{10}

 = 0.1

Hence, when a page is selected at random, the probability that the number on the page is divisible by 10 is 0.1 or 1/10.

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