Question

Which greatest digit should replace m so that the number 778 m 09 is dividible by 3

Answer 1

Answer:

The answer is 8

Step-by-step explanation:

It is because 7+7+8+m+9 should be divisible by 3. The number is 8 is the highest number that can be put in the place of m which makes the no 778809 divisible by 3.

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Answer 2

Answer:

I guess it's 8

Step-by-step explanation:

As the divisibility rule for 3 is that the sum of all the digits in the number should be able to divided by 3.

So, in this case the number m should be replace by the greatest didit which can make it divisible by 3 in 7+7+8+m+0+9 .

Here, all the numbers we can replace m by are -

2,7,8

Therefore, the greatest number here is 8 and we can replace it in the place of m.

Ans - 7+7+8+8+0+9 = 39

39 ÷ 3 = 12 ( with remainder as 0)