Q4. Without actually dividing test the divisibility of the following numbers. Give reason for your answer. 1785 by 7
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Answer:
1785/7=255
Step-by-step explanation:
To check if a number is evenly divisible by 7: Take the last digit of the number, double it Then subtract the result from the rest of the number If the resulting number is evenly divisible by 7, so is the original number.
in this question
5*5=25 now
1785-25=1750 since its divisible ao number is also divisible
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