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What least value should be given …

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What least value should be given to * સી that the number 653*47 is divisible by 11?
  • 1 answers

Naveen Sharma 8 years, 2 months ago

if the difference of the sum of digits at odd places and the sum of its digits at even places, is either 0 or divisible by 11, then clearly the number is divisible by 11.
Let the value of * is x.

Sum of numbers at odd places = 6 + 3 + 4 = 13
Sum of numbers at even places = 5+x+7 = 12 + x
 
To make difference of these sum = 0, the minimum value of x is 1. 

 

 

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