Question

How many three digits number divisible by 11

Answer 1

How many three digit numbers  are divisible by 11?

Solution:

Step 1 :

The smallest three digit number = 100

The largest three digit number = 999

Step 2 :

Let us find number of numbers divisible by 11 from 1 to 999

Divide 999 by 11 --------------> 999/11 = 90.82

Therefore number of numbers divisible by 11 from 1 to 999 = 90

Step 3 :

Let us find number of numbers divisible by 11 from 1 to 99

Divide 99 by 11 --------------> 99/11 = 9

Therefore number of numbers divisible by 11 from 1 to 99 = 9

Step 4 :

Number of numbers divisible by 11 (1 to 999) =90

Number of numbers divisible by 11 (1 to 99) =9

Number of numbers divisible by 11 (100 to 999)

                                            = 90 - 9

                                            = 81    

Therefore, number of three digit numbers (100 to 999) which are divisible by 11 is 81
Hope this help you

Answer 2

the number of 3 digit number divisible by 11 is 81