Question

Find the missing digit in 394_7 so that the given number is divisible by 9.​

Answer 1

Answer:

$\huge \it \red{answer}$

TO FIND

the missing digit in 394_7 which is divisible by 9

SOLUTION

sum of the digit of 394_7 = 23

23 isnt divisble by 9 but 27 is divisible by 9

so the required letter is 4