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In a 2-digit, digit in units place is tiwce the digit in tens plave. If 27 is added to it .what is the number |
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Answer» Let us assume, X is a tenth place digit and y is the unit place digit of a two-digit number. Therefore, the two-digit number = 10x + y and the reversed number = 10Y + x Given: y = 2x -----------1 Also given: 10x + y + 27 = 10y + x 9y - 9x = 27 y - x = 3 Substitute the value of y from equation 1 in equation 2 2x - x = 3 x = 3 Therefore y = 2x = 2 * 3 = 6 = 10x + y = 10*3 + 6 = 36 hope it helps...... |
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