A super-Bazar prices an item in rupees and praise so that when 4 %sales tax is added, no rounding is necessary because the result is exactly in 'n' rupees, where 'n' is a positive integer. find the smallest value of 'n'.
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10 can be the smallest value for n
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Answer: p = 13
Assume final rupees is 'p' and initial before tax is 'x'
From the question
Now, p must be a factor of 26 which are 1, 2, 13 and 26. For x to be terminating decimal n can be 13 or 26. 13 is smaller.
i.e. p = 13
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