Q. AB
  *BA
(B+1) C B
 

Asked by abbu786 | 17th Jul, 2017, 09:33: PM

Expert Answer:

begin mathsize 16px style space space space space space AB
bottom enclose cross times space BA end enclose
left parenthesis straight B plus 1 right parenthesis CB

Here comma space 2 minus digit space number space is space multiplied space by space 2 minus digit space number space and space answer space is space 3 minus digit space number.
Now comma space 17 cross times 71 equals 1207 space minus space 4 minus digit space number
So space number space AB space has space to space be space less space than space 17.
If space we space take space AB equals 13 comma space then space we space have space BA equals 31
So comma space AB cross times BA equals 13 cross times 31 equals 403
Thus comma space we space have
space space space space space space space 13
bottom enclose cross times space space space 31 end enclose
space space left parenthesis 3 plus 1 right parenthesis 03 space space space left parenthesis 403 right parenthesis space
end style

Answered by Rashmi Khot | 18th Jul, 2017, 09:03: AM