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

User Antony Thomas
by
2.9k points

1 Answer

5 votes
5 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 Martin Foot
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