The correct answer is 78.

Here's the step-by-step solution:

1. The sum of the two digits is 15. The only two digits that add up to 15 are 7 and 8.

2. If 9 is added to the number, the digits are reversed. This means the original number must be 78, because 78 + 9 = 87, which is the reverse of 78.

Therefore, the numbers are 7 and 8, and the original number is 78.

Question

The correct answer is 78.

Here's the step-by-step solution:

1. The sum of the two digits is 15. The only two digits that add up to 15 are 7 and 8.

2. If 9 is added to the number, the digits are reversed. This means the original number must be 78, because 78 + 9 = 87, which is the reverse of 78.

Therefore, the numbers are 7 and 8, and the original number is 78.

Knowee AI · Accepted Answer

The correct answer is 78.

Here's the step-by-step solution:

1. The sum of the two digits is 15. The only two digits that add up to 15 are 7 and 8.

2. If 9 is added to the number, the digits are reversed. This means the original number must be 78, because 78 + 9 = 87, which is the reverse of 78.

Therefore, the numbers are 7 and 8, and the original number is 78.

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?Options7782878578