How many number of 3's would be used to type numbers from 1 to 700
Choose one
A) 210 B) 220 C) 230 D) 240 E) 250
1-99--20 (3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93)   likewise   100-199--20   200-299--20   300-399--120 (300-399 there is extra 100 3's)   400--499--20   500--599--20   600-700--20   20+20+20+120+20+20+20= 
<gadget id="calculator">20+20+20+120+20+20+20</gadget>
<output>240</output>
240   ANSWER:240
<result>D</result>
How many number of 3's would be used to type numbers from 1 to 700