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Question
What is the divisibility rule for 9? Is 621 divisible by 9? [2 MARKS]
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Solution
Rule: 1 Mark
Solution: 1 Mark
A number is said to be divisible by 9 if the sum of its digits is divisible by 9.
The given number is 621.
Now, 6+2+1=9, which is divisible by 9.
∴ 621 is divisible by 9.
Rule: 1 Mark
Solution: 1 Mark
A number is said to be divisible by 9 if the sum of its digits is divisible by 9.
The given number is 621.
Now, 6+2+1=9, which is divisible by 9.
∴ 621 is divisible by 9.
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