Select the correct answerThe sum of two digits of a number is 15. if 9 is added to the number, the digit is reversed. The numbers are?Options7877878285
Question
Select the correct answerThe sum of two digits of a number is 15. if 9 is added to the number, the digit is reversed. The numbers are?Options7877878285
Solution
The correct answer is 78 and 87.
Here's the step-by-step solution:
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The sum of two digits of a number is 15. This means the two digits can be 7 and 8, 8 and 7, 6 and 9, or 9 and 6.
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If 9 is added to the number, the digits are reversed. This means if we have a number 78, adding 9 would result in 87, which is the reverse of 78. Similarly, if we have a number 87, adding 9 would result in 96, which is not the reverse of 87.
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Therefore, the only numbers that satisfy both conditions are 78 and 87.
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