   # Guess the three digit number and what is the sum of three digits ?

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A 3 digit number is such that its unit digit is equal to the product of the other two digits which are prime. Also, the difference between its reverse and itself is 396. What is the sum of the three digits? posted Jul 30, 2014
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## 1 Answer

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answer is 11...
the num is 236...
unit digit is 6... i.e; 2*3=6...
difference b/w reverse of a num & itself i.e; 632-236=396...
sum of digits in 236 is 11... answer Aug 7, 2014

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I'm thinking of a number.

• It is a two-digit positive integer.
• The sum of its digits is 10.
• Subtracting 72 from the number swaps its two digits.

What is the number?