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The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?
  1. 59
  2. 68
  3. 86
  4. Cannot be determined
  5. None of these
Explanation

Let the ten's digit be x and unit's digit be y

Then, x + y = 15 and x - y = 3   or   y - x = 3

Solving x + y = 15   and   x - y = 3, we get: x = 9, y = 6

Solving x + y = 15   and   y - x = 3, we get: x = 6, y = 9

So, the number is either 96 or 69

Hence, the number cannot be determined.

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  1. 70
  2. 69
  3. 68
  4. None of these
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  1. (-2A)^B
  2. -2A²B
  3. Both are equal
  4. Cannot be determined
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 78
  2. 79
  3. 80
  4. None of these
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  1. 0.2
  2. 0.4
  3. 0.5
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

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