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Question
Mark against the correct answer
How many 7-digit numbers are there?
Options
8999999
9000000
10000000
none of these
Solution
The largest seven-digit number = 9999999
The smallest seven-digit number = 1000000
Total number of seven-digit numbers = (9999999 − 1000000) + 1
= 8999999 + 1
= 9000000
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