divilities test by 7
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double the once digit if the no. and then subtract it from original no. then the no. if comes in 7 table....it is divisible
pulkitsharma20pbt351:
???
sorry there is no comment
ya
plz give
example
504= 50-4×2 = 42 that comes in table of 7
so,it is divisible by 7
thanks dear
Answered by
0
Subtract 2 times the last digit from remaining truncated number. Repeat the step as necessary. If the result is divisible by 7, the original number is also divisible by 7
Check for 945: : 94-(2*5)=84. Since 84 is divisible by 7, the original no. 945 is also divisible
jawahaarabc143
This was an extract but hope this helps u with Ur home work
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