Question

6. If the number 7254*94 is divisible by 11, the digit at * is? ​

Answer 1

Answer:

A given number is divisible by 11, if the difference between the sum of its digits at odd places and the sum of its digits at even places, is either 0 or a number divisible by 11.

The given number is 7254*94

Sum of its digits at odd places (4+*+5+7)=(16+*)

Sum of its digits at even places (9+4+2)=15

Hence ,number required in place of * to make it divisible by 11=10

By adding the value of * as 10 .

Difference between the digits at odd places and the digits at even places =>(16+*=16+10)-15

=>26-15=11

11 which is divisible by 11.