allery400 కు కొన్న ఒక వస్తువు 500 కు అమ్మబడింది. లాభ శాతం:
A20%
B30%
C25%
D40%
Answer & Solution
Correct answer: C. 25%
1. రూపాయలలో లాభం 500 - 400 = 100.
2. లాభ శాతం ఎల్లప్పుడూ కొన్న వెలపైనే తీసుకోబడుతుంది.
3. కాబట్టి ఇది 100 / 400 x 100.
4. అది 25 శాతాన్ని ఇస్తుంది.
5. అమ్మకపు ధరతో భాగిస్తే 20 శాతం వస్తుంది, ఇది ఈ ప్రశ్నకు సంబంధించిన సాధారణ తప్పు సమాధానం.
_Source: syllabus Maths, Ch 7 'Comparing Quantities', S7.1 Recalling Ratios and Percentages_
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