Nancy wrote the following the riddle : I am a number between 25 and 50. my ones digit is three less than my tens digit. I am a prime number.

Question

Mauricio Reid

Mathematics

16 April, 20:49

Nancy wrote the following the riddle : I am a number between 25 and 50. my ones digit is three less than my tens digit. I am a prime number.

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Answers (1)

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Lexi Tyler · Answer 1

Xy

x is tens

y is ones

hmm

it has to be more than 25, so the tens digit has to be at least 2 but less than 5

2-3=-1, no

3-3=0, 30 is a number

4-3=1, 41 is a number

30 and 41

30 is 3 times 10, it is not prime

41 is prime

41 is the answer