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ఒక విలువ 500 నుండి 400కి తగ్గితే, తగ్గుదల శాతం ఎంత?

A20%
B25%
C15%
D10%
Answer & Solution
Correct answer: A. 20%
తగ్గుదల = 500 - 400 = 100. తగ్గుదల శాతం = (100 / 500) * 100 = 20%.
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