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Q: Answer-How many digits are required to write first 250 natural numbers?

Single digit numbers are from 1 to 9 so in that total digits used 9. From 10 to 99.there are 90 numbers of 2 digits , so here digit used 90 x 2 180 From 100 to 250 3 x 151 453 as all are of 3 digit number. So number of digits required to first 250 natural number 9 180 453 642

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data-sheets-value="{"1":2,"2":"How many digits are required to write first 200 natural numbers?"}" data-sheets-userformat="{"2":769,"3":{"1":0},"11":4,"12":0}">How many digits are required to write first 250 natural numbers?

A 640

B 542

C 642

D 622

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