Question

50Pointss Question!

find the number of Three digit natuaral numbers which are divisible by 11 ??​

Answer 1

Answer:

The three digit number is 990.

Step-by-step explanation:

Biggest three digit number: 999

999/11 = quotient: 90 and remainder: 9

The required no. = 999 - 9

= 990.

Answer 2

Answer:

The number of Three digit natural numbers which are divisible by 11 is 81

Step-by-step explanation:

First three digit natural number which is divisible by 11 is 110

The last three digit natural numbers which is divisible by 11 is 990

This is an arithmetic progression

Where first term = a = 110

Common difference = d = 11

Let 990 be the nth term

So

a + (n-1)d = 990

110 + (n-1)×11 = 990

(n-1)×11 = 880

(n-1) = 80

n = 81

So the number of Three digit natural numbers which are divisible by 11 is 81

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