Question

which is largest 4 digit number divisible by 78

Answer 1

Largest 4 digit number is 9999

9999/78=15 will be the remainder and 128 will be the quotient

9999-15=9984

therefore 9984 is the answer

Answer 2

Solution :-

Largest 4 digit number = 9999

To find the largest 4 digit number which is divisible by 78, we have to divide 9999 by 78 and then subtract the remainder from 9999. After subtracting the remainder from 9999, we will get the largest 4 digit number that is exactly divisible by 78.

            ______
        78) 9999 (128    
              78
            --------
              219
              156
            --------
                639 
                624
              --------
                  15 - Remainder
              --------

Now, we will subtract 15 from 9999.

⇒ 9999 - 15 = 9984

⇒ 9984 ÷ 78 = 128

So, 9984 is the largest 4 digit number which is divisible by 78.