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Number of zeros

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1 Number of zeros on Tue May 04, 2010 9:08 am

A certain street has 1000 buildings. A sign-maker is contracted to number the
houses from 1 to 1000. How many zeroes will he need?

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2 no of zeros on Wed May 05, 2010 1:30 am

i2aGuru wrote:A certain street has 1000 buildings. A sign-maker is contracted to number the
houses from 1 to 1000. How many zeroes will he need?


220

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3 @ Sadanand on Wed May 05, 2010 10:30 am

The answer is not correct. Can you give it a try once again.

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4 Re: Number of zeros on Thu May 06, 2010 9:29 pm

192..

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5 @codecrkr on Thu May 06, 2010 11:26 pm

this is the right answer . good job.

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6 re: no of zeros on Sat May 08, 2010 7:02 pm

1 to 100 - 11 0's
101 to 200 -20 0's
.
.
.
.
.
801 to 900 -20 0's
901 o 1000 -21 0's
total= 11+20*8+21=192

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