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sum of two digits of a 2 digit number is 12. if the digits are reversed, the new number, so formed increase by 36. find the number |
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Answer» Answer: Tens digit of NUMBER = x Ones digit of number = 12-x Original Number = 10x+12-x = 9x+12
REVERSED Number = 10(12-x)+x = 120-10x+x = 120-9x According to the question, 9x+12+36=120-9x 9x+48=120-9x 9x+9x=120-48 18x=72 x=72/18 x=4 Original Number = 9x+12 = 9(4)+12 = 36+12 = 48 is the number
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