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Question
Which of the following have the divisibility test by sum of the digits?
Which of the following have the divisibility test by sum of the digits?
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Solution
The correct option is C Divisibility by 3
If any number ends with the digits 0, 2, 4, 6, and 8, then that number is divisible by 2.
If any number ends with 0 or 5, then that number is divisible by 5.
For a number divisible by 3, we add the digits and if the sum of the digits is divisible by 3, then the number is divisible by 3.
For example: Consider the number 513.
5+1+3 = 9
9 is divisible by 3.
Hence, 513 is divisible by 3.
If any number number ends with 0, then that number is divisible by 10.
So, divisibility by 2, 5 and 10 is based the number at the units place where as, divisibility by 3 is checked by the sum of the digits.
If any number ends with the digits 0, 2, 4, 6, and 8, then that number is divisible by 2.
If any number ends with 0 or 5, then that number is divisible by 5.
For a number divisible by 3, we add the digits and if the sum of the digits is divisible by 3, then the number is divisible by 3.
For example: Consider the number 513.
5+1+3 = 9
9 is divisible by 3.
Hence, 513 is divisible by 3.
If any number number ends with 0, then that number is divisible by 10.
So, divisibility by 2, 5 and 10 is based the number at the units place where as, divisibility by 3 is checked by the sum of the digits.
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