Question

plz solve the qusn 3rd nd 4th

Answer 1

ANSWER

3) Divisibility by 11

we have to add alternate digits.

i) 46x6

4-6 + x-6

-2 + x-6 => divisible by 11 or 0

If x => 8

-2 + 8-6 =>0

hence x=>8

ii) 3x74

3-x + 7-4

3-x + 3

if x=>6

3-6 + 3=>0

hence x=> 6

4) divisibility by 9

sum of all digits should be divisible by 9

37x07

17+x

if x=>1

17+1=>18

which is divisible by 9

hence x=>1