Question

which is greatest digit should replace m so that the number 778m09 is divisible by 3

Answer 1

DIVISIBILITY FOR 3
If the sum of the numbers is divisible by 3 then the whole number will be divisible by 3.

7+7+8+m+0+9 = 31

31 is not divisible by 3. 33 is be number which is divisible by 3.

m = 31+ 2
m= 2

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Answer 2

Answer:

DIVISIBILITY FOR 3

If the sum of the numbers is divisible by 3 then the whole number will be divisible by 3.

7+7+8+m+0+9 = 31

31 is not divisible by 3. 33 is be number which is divisible by 3.

m = 31+ 2

m= 2

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