Question

Find the number of 3-digit numbers, which are divisible by 11?
Steps of solving pls ​

Answer 1

we want to find a number of three digits which is divisible by 11 .

so we can multiply 11 by 2 digit numbers to find the number required

1. 11 × 10 = 110

( thus 110 is a three digit number that is divisible by 11 )

in the same way you can find many numbers that are divisible by 11 and are of 3 digits

2. 11 × 11 = 121

3. 11 × 20 = 220

Answer 2

Answer:

Number of 3 digit numbers divisible by 11 is 81

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Step-by-step explanation:

Here

a =  110  

d=11

an = 990

an = a1 + ( n - 1 ) d

=> 990 = 110 + ( n - 1 ) 11

=> 880 = ( n - 1 ) 11

=> 80 = ( n - 1 )

=> 81 = n

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