alleryஒரு மதிப்பு 500-லிருந்து 400 ஆகக் குறைந்தால், குறைவு சதவீதம் என்ன?
A20%
B25%
C15%
D10%
Answer & Solution
Correct answer: A. 20%
குறைவு = 500 - 400 = 100. சதவீதக் குறைவு = (100 / 500) * 100 = 20%.
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