Question

Find the least value of * for which 4832 *18 is divisible by 11 with explanation

Answer 1

Divisibility rule of 11

4+3+*+8=15+*
8+2+1=11

22-15=7
Therefore,*=7

Answer 2

Answer:7

Step-by-step explanation:

let * value is x.

we know a number is divisible by 11 if sum of alternate digit's difference is divisible by 11 or zero.

so sum of number is = 8+x+3+4 =15+x

and 1+2+8=11

so difference is (15+x)-11 = 4+x

to divide completely by 11 the difference (4+x) must be 11

⇒4+x=11

⇒x=7

so at the place of * we have to put 7 so that number is completely divisible by 11.