Question

In the following numbers replace*by a digit,to make it divisible by 11 a) 5*9397

Answer 1

by divisibility rule of 11.

A no. is divisible by 11 if the difference of the sum of its digit in odd place and the sum of its digits in even places (starting from the ones place) is either 0 or a multiple of 11.

= 5*9397

sum of its digits in odd place=(7+3+5)=15

sum of its digits in even places= (9+9+*)= 18

difference of the two sums = 18-15=3

therefore, it is not divisible by 11

so ,if we add 8 in 3 it will be divisible.

so, answer= 589397.

Answer 2

Step-by-step explanation:

sum of odd digits=5+9+9=23

sum of even digits=*+7+3=10

so ;their difference =23-10=13

next no is divisible by 11 is 22

*no is to be repalced = 22-13= 9

so the answer is 9