Question

Why 9 is a magic number?

Answer 1

Heya,

9 is a magic number as:
They sum of the digits of the number obtained on multiplying any number with 9 is 9.
For example,
1.) 9 × 2 = 18,and 8 + 1 = 9
2.) 9 × 4 = 36,and 3 + 6 =9,.........etc.

Hope this helps. . . . if it really helped, then please mark it as the BRAINLIEST and please say a thanks.

Thanks.