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After three successive equal percentage rise in the salary the sum of 100 rupees turned into 140 rupees and 49 paise. Find the percentage rise in the salary.

a) 12%
b) 22%
c) 66%
d) 82%

Answer: a
Explanain : Solve it through options
100 == 12% up ==> 112 == 12% up ==> 125.44 == 12% Up ==> 140.49
So, answer is 12%

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