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The difference between a 2-digit number and the number obtained by interchanging itsdigits is 27. What is the difference between the sum and the difference of the digits of theber if the ratio between the digits of the number is 1:2? |
Answer» Answer: Reversing the digits and subtracting the original number from it, we get: 21 - 12 = 9; 42 - 24 = 18; 63 - 36 = 27 and 84 - 48 = 36. THUS, the number we are looking for is 48; the sum of the digits is 4 + 8 = 12 and the difference of the digits is 8 - 4 = 4. Thus, the difference between the TWO is 12 - 4 = 8. |
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