How many three digit number are …

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How many three digit number are divisible by 11?

Posted by Neha Kumari 1 year ago

CBSE > Class 10 > Mathematics

1 answers

Sonam .... 1 year ago

You can solve it by AP a1=121 , a2=132. d =11. an = a +( n-1)d. 121+(n-1)11=990. (n-1)11=869. n-1 =869/11. n-1=79. n=80.

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