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PROBLEM:

QUESTION:

1107 is divisible by what number?

SOLUTION:

Once again, We are going to find the number by doing some trial and error. Start by dividing each number individually to 1107.

First, Let's try it with letter D. 2 & 9

1107 divided by 2 is 553.5 (not divisible)

1107 divided by 9 is 123 (divisible)

Now, Let us try letter C. 3 & 6

1107 divided by 3 is 369 (divisible)

1107 divided by 6 is 184.5 (not divisible)

Now, Let's try letter B. 3 & 9

1107 divided by 3 is 369 (divisible)

1107 divided by 9 is 123 (divisible)

and Lastly, Let's do letter A. 6 & 9 just to be sure.

1107 divided by 6 is 184.5 (not divisible)

1107 divided by 9 is 123 (divisible)

Only letter B can satisfy the problem.

ANSWER:

Therefore, 1107 is divisible by (B) 3 & 9

Additional Note:

Trial and Error can again also be used other problems. You can also use it to confirm your answer.

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