Question

find odd and out 5,21,31,27​

Answer 1

here,

the number 5 has only a single digit while others are two-digit numbers.

therefore, 5 is the odd one out here

hope this helps!!❤✌✌☺

Answer 2

✔️✔️5 is the odd one out

Reason:
It is a single digit no and others are double digit nos....