Question

If a nine-digit number 389x6378y is divisible by 72, then the value of ! + will be?

Answer 1

Answer:

If number is divisible by 72 (8 × 9) then it must be

**Divisible by 8

law of Divisibility by 8 is last three digits must be divisible by 8 , so

78y = 780 + y = 97×8 + ( 4 + y ) is divisible by 8 . So value of 4+y = 8 or y = 4

**Divisible by 9

Sum of digits should be divisible by 9

So Value of x = 4 ( 50 + 4 = 54 = 9×6 )

So

answer=4

here is the correct answer please mark me brainliest and give thanks