Question

in 92*389 replace*by a digit so that the number formed is divisible by 11​

Answer 1

Answer:

8

Step-by-step explanation:

To check divisibility by 11, we check

Sum of digits at odd places−Sum of digits at even places=0 or a number divisible by 11

Sum of digits at even places=9+3+2=14

Sum of digits at odd places=8+ $$_ $$ +9=17+ $$_$$

Blank digit  Sum odd Sum even  Difference  Divisible by 11  

0  17+0=17  14  3   NO

1  17+1=18  14  4   NO

2  17+2=19  14  5   NO

3  17+3=20  14  6   NO

4  17+4=21  14  7   NO

5  17+5=22  14  8   NO

6  17+6=23  14  9   NO

7  17+4=24  14  10   NO

8  17+5=25  14  11 YES

9  17+9=26 14  12   NO

So blank digit is 8