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the sum of the digits of a two-digit number is 12 if the number formed by reversing its digits is greater than the original number by 18 find the original number |
Answer» Lets assume thatOne number = x other number = 12-x Now, 10(12-x) +x 120 - 10x +x 120-9x After REVERSING digits 10x + 12-x 9x + 12 Acc to the question the new number is 18 more than the original number , so 9x +12 = 18 + 120 -9x 18x = 126 x = 126/18 x = 7 other number = 12-7= 5 Verification:5+7 =12 After reversing digits 75 = 18+57 So 75 is 18 more than 57. Hence verified |
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