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The sum of digits of a 2 digit number is 7. If digits are interchanged the new number formed is less than four times of original number. (use 2 vaiables)



Let the original number be 10a + b.
given, a+b=7
now, according to question,
so a can be any natural number from 1 to 9,
b can be any whole number less than 6.

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thank u
welzzo! hey, is the answer given to this question? is it given like this?
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