Meena wrote number starting from 1 till 19999.Then how many digits did she write ?  Choose the correct choice from the following answers
A) 87889 B) 88889 C) 89889 D) 88789 E) 88989
1-9=&gt;1*9 digits   10-99=&gt;2*90= 
<gadget id="calculator">2*90</gadget>
<output>180</output>
180(numbers between 10-99 is 90 where each no has 2 digits)   100-999=&gt;3*900= 
<gadget id="calculator">3*900</gadget>
<output>2_700</output>
2700   1000-9999=&gt;4*9000   10000-19999=&gt;5*10000   so ans is 88889   ANSWER:88889
<result>B</result>
Meena wrote number starting from 1 till 19999.Then how many digits did she write ?