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latOne of the digits of a two-digit number is five times the other. If we interchange the digits ofthis number and add the resulting number to the original number, we get 66. What is the originalnumber? |
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Answer» Let the two digit number be (10a+b)According to the question(10a+b)+(10b+a)=66; 11a+11b=66;a+b=6;And also it is given that a=5b or b=5aIf a=5b then put in the above equation 6b=6; then b=1 then a=5...then the number is 51 and if a=1 then b=5 then the number is 15 |
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