Check for test of divisibility of the following
numbers by 7.
1)753
2)203
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3
Answer:
1)753
753 is not divisible by 7.
Multiply the last digit with 2 and then subtract the product from the remaining digits.
75-(3×2)=69
69 is not divisible by 7 so 753 is not divisible by 7.
2)203
203 is divisible by 7
Multiply the last digit with 2 and then subtract the product from the remaining digits.
20-(3×2)=14
14 is divisible by 7 so 203 is divisible by 7.
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