Question

plus anyone smart here...​

Answer 1

Answer:

If a , b and c are digits then number will be

$= 100a + 10b + c$

Similarly put other values in your expression

$abc + bca + cab \\ = \\ (100a + 10b + c) + (100b + 10c + a) + (100c + 10a + b) \\ \\ =100 (a +b + c) + 10 (a + b + c) + (a + b + c) \\ \\ = (100 + 10 + 1) (a + b + c) \\ \\ = 111 (a + b + c) \\ \\ = 37 \times 3 (a + b + c) \\ \\ = 37k$