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The digit 7 appears twice in the product.
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5 votes
The digit 7 appears twice in
the product.

User Kam
by
5.3k points

1 Answer

2 votes

Answer:

The numbers in which 7 appears are. 7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97, 107. So, counting all. ∴ Number of times 7 appears = 21

User Blnpwr
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