Question

A new colony was built and the builder gave contract to a sign maker to number the building from number 1 to 500 .how many zeroes will he need

Answer 1

Hi,
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From - tol Numbers which has digit
I zero
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1 to 100. 10,20,30,40,50,60,70,80,

90,100
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101 to 200 101,102,103,104,105,106,

107,108,109,110,120,130,

140,150,160,170,180,190,

200
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201 to 300 201,202,203,204,205,


206,207,208,209,210,220

230, 240,250,260,270,

280,290, 300

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301 to 400 301,302,303,304,305

306,307,308,309,310

320,330,340,350,360

370,380,390,400
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400 to 500. 401,402,403,404,405,

406,407,408,409,410,

420,430,440,450,460,

470,480,490,500
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Now ,

Total zeroes from 1 to 100 = 11

101 to 200= 20

201 to 300 = 20

301 to 400 = 20

401 to 500 = 20

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Total zeroes from 1 to 500 = 91
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