Question

If m = 7777....7777 is a 99 digit number and
n = 999....999 is 77 digit number, then the sum of
the digits in the product m x n is
(1) 890
(2) 891
(3) 892
(4) 893
​

Answer 1

Answer:

891 is correct answer

Explanation:

...it's wrong because I don't know