How many times digit 20 is used while writing numbers from 100 to 500?  Choose the correct option:
A) 20	B) 30	C) 15	D) 25	E) 20
in 100 to 200 there are 5 20's   in 200 to 300 there are 5 20's   in 300 to 400 there are 5 20's   in 400 to 500 there are 5 20's   so, total 20 is 20's   CORRECT OPTION : 20
<result>A</result>
How many times digit 20 is used while writing numbers from 100 to 500?