How many times digit 6 is used while writing numbers from 80 to 1000?	Choose the most appropriate option
A) 648  B) 300  C) 252  D) 225  E) 26
There are 100 numbers which begin with 600   Next, In every 10 numbers such as 100 to 110, 110 to 120, 120 to 130 6 comes at least once. Number of such intervals = End limit - First no. / interval. Our range of numbers is 100 - 1000   1000 - 100= 
<gadget id="calculator">1000 - 100</gadget>
<output>900</output>
900/10= 
<gadget id="calculator">900/10</gadget>
<output>90</output>
90   Number of 10s interval in this is 90. So 90 '6s'   So far we have calculated 190.   The total now comes to 280. The nearest to which is 225. Hence 225.
<result>D</result>
How many times digit 6 is used while writing numbers from 80 to 1000?