14.
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The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
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A.
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3
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B.
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4
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C.
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9
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D.
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Cannot be determined
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E.
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None of these
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Answer: Option B
Explanation:
Let the ten's digit be x and unit's digit be y.
Then, (10x + y) - (10y + x) = 36
9(x - y) = 36
x - y = 4.
