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A number consists of two digits and the digit in the ten’s place exceeds that in the unit’s place by 5. if 5 times the sum of the digits be added from the numbers, the digits of the number are reversed. Then the sum of digits of the number is?

Question

A number consists of two digits and the digit in the ten’s place exceeds that in the unit’s place by 5. if 5 times the sum of the digits be added from the numbers, the digits of the number are reversed. Then the sum of digits of the number is?

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Solution

Let's break down the problem step by step:

  1. Let's denote the digit in the tens place as T and the digit in the units place as U. According to the problem, T = U + 5.

  2. The number itself can be expressed as 10T + U.

  3. The problem also states that if 5 times the sum of the digits is added to the number, the digits are reversed. This can be expressed as 10T + U + 5(T + U) = 10U + T.

  4. Substituting T = U + 5 into the equation from step 3, we get 10(U + 5) + U + 5((U + 5) + U) = 10U + (U + 5).

  5. Simplifying the equation, we get 10U + 50 + U + 5U + 25 = 10U + U + 5.

  6. Simplifying further, we get 16U + 75 = 11U + 5.

  7. Solving for U, we get U = -70/5 = -14. However, this is not possible as U is a digit and cannot be negative.

  8. Therefore, there seems to be a mistake in the problem as it does not have a valid solution.

This problem has been solved

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