Question

Q13. Using divisibility test, determine if 83721 is divisible by 11.

Answer 1

Answer:

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Step-by-step explanation:

ANSWER

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 11

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 1183721

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 1183721Sum of the digits at odd places =1+7+8=16

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 1183721Sum of the digits at odd places =1+7+8=16Sum of the digits at even places =2+3=5

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 1183721Sum of the digits at odd places =1+7+8=16Sum of the digits at even places =2+3=5Difference of the two sums =16−5=11

ANSWERIf the difference of the sum of its digits at odd places and sum of its digits at even places is either 0 or multiple of 11 then the given number is divisible by 1183721Sum of the digits at odd places =1+7+8=16Sum of the digits at even places =2+3=5Difference of the two sums =16−5=11∴83721 is divisible by 11