Question

i) Write a digit in the blank space so that the number 90115__ formed will be divisible by 11​

Answer 1

Answer:

3

Explanation:

a number is divisible by 11 if the difference between the sum of digits are odd places and the sum of even places and the sum of digits at even places is either are multiple of 11

so, 90115--- 9+1+5=15,0+1=1 now find the difference 15-1=14

so it is not divisible by 11

14-11=3

the answer is 3