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All the whole numbers from 1 to 100 are written in a row next to each other. How many 7s are there in the formed number?

All the whole numbers from 1 to 100 are written in a row next to each other. How many 7s are there in the formed number?
asked 65.7k views
1 vote
All the whole numbers from 1 to 100 are written in a row next to each other. How many 7s are there in the formed number?

asked
User Kwoodson
by
7.7k points

1 Answer

5 votes
7, 17,27,37,47,57,67,70,71,72,73,74,75,76,77(27’s in this one),78,79,87,97
20 7’s in 1-100
answered
User Dave Flynn
by
9.0k points
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