In a two digit prime number, if 18 is added, we get another prime number with reversed digits. How many such numbers are possible?

Options
- 4
- 3
- 2
- 5

CORRECT ANSWER : 2

Discussion Board
Solution

Ans is: 2

Combination of prime numbers are
13 and 31,
79 and 97.

13+18=31 and
79+18=97

Pooja Dayanand 04-10-2017 04:37 AM

explain

please explain how the answer you have got

prashanth 02-3-2017 08:38 AM

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