If all the 6 are replaced by 9, then the algebraic sum of all the numbers from 1 to 100 (both inclusive) varies by how much? Choose the correct option:
A) 330  B) 360  C) 380  D) 400  E) 420
unit place increased by 3. So 6,16,26,....96. Total  10*3= 
<gadget id="calculator"> 10*3</gadget>
<output>30</output>
30 increased.   ten's place increased by 30. So 60,61,...69. Total  10*30= 
<gadget id="calculator"> 10*30</gadget>
<output>300</output>
300 increased.   So total varies= 300 + 30= 
<gadget id="calculator">300 + 30</gadget>
<output>330</output>
330.   330NSWER:330
<result>A</result>
If all the 6 are replaced by 9, then the algebraic sum of all the numbers from 1 to 100 (both inclusive) varies by how much?