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| Math Central | Quandaries & Queries |
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Question from jai, a student: it is smaller than half of 100, it is more than 4 tens and less than 5 tens, the tens digit is two more than the ones digit , together the digits have a sum of 6..... What is my secret number? |
Hi Jai,
This is a two digit number and the tens digit is 2 more than the ones digit. Thus the possibilities are
20
31
.
.
.
97
Which one has 6 as the sum of its digits?
Penny
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