INTERCHANGING digit = 10y + xAccording to QUESTION;x + y = 11 -------(1)and,(10x + y) + 27 = 10y + x 10y + x - 10x - y = 279y - 9x = 27y - x = 3 ---------(2)After solving equation (1) and (2)x = 4y = 7Number = 47Hence, "47" is the correct answer.

"> INTERCHANGING digit = 10y + xAccording to QUESTION;x + y = 11 -------(1)and,(10x + y) + 27 = 10y + x 10y + x - 10x - y = 279y - 9x = 27y - x = 3 ---------(2)After solving equation (1) and (2)x = 4y = 7Number = 47Hence, "47" is the correct answer.

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A number consists of two digits sum is 11. If 27 is added to the number, then the digits change their places. What is the number?

Logical and Verbal Reasoning Ranking Puzzle in Logical and Verbal Reasoning . 3 years ago

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Let two digit number = xy = 10x + yReverse number after INTERCHANGING digit = 10y + xAccording to QUESTION;x + y = 11 -------(1)and,(10x + y) + 27 = 10y + x 10y + x - 10x - y = 279y - 9x = 27y - x = 3 ---------(2)After solving equation (1) and (2)x = 4y = 7Number = 47Hence, "47" is the correct answer.

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