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The correct answer is 36 3 digit integers greater than 700. 2 cases case 1: when first digit is 7 then using counting priniciple 1st digit has an option of 1 , and hence since two digits are equal the 2nd digit also is 1 third digit is between 1- 9 ( number greater than 700= 701 ) since the first 2 ...
- by guru_1971
Fri Dec 10, 2010 1:02 am- Forum: Problem Solving
- Topic: Digits: Of the 3-digit integers greater than 700, how many h
- Replies: 14
- Views: 19719