Question

in each of the following replace * by a digit so that the number formed is divisible by 11 8* 6 9 4 8 4​

Answer 1

5

Step-by-step explanation:

8*69484

sun of odd place digits

4+4+6+8=22

sun of even place digits

8+9+(*)=17+(*)

difference of 22 and 17 +(*) is always divisible by 11

let (*)=1

22-(17+1)=4(4 is not divisible by 11)

(*)=2

22-(17+2)=3(not divisible by 11)

(*)=3

22-(17+3)=2(not divisible by 11)

(*)=4

22-(17+4)=1(not divisible by 11)

(*)=5

22-(17+5)=0(it is divisible by 11 )

therefore (*)=5

(*)=6

22-(17+6)= -1(not divisible by 11)

(*)=7

22-(17+7)= -2(not divisible by 11)

(*)=8

22-(17+8)= -3(not divisible by 11)

(*)=9

22-(17+9)= -4 (not divisible by 11)

(*)=0

22-(17+0)= -5 (not didible by 11)

so finally ans is only (5)