4 సంవత్సరాల కాలానికి ప్రతి వార్షిక వడ్డీకి 7.5% సరళ వడ్డీ రేటుతో మొత్తం డబ్బును పెట్టుబడి పెట్టారు. ఒకవేళ 5 సంవత్సరాలపాటు ఇన్వెస్ట్ చేసి ఉంటే వడ్డీ రూ.375 అదనంగా వచ్చేది. మొదట పెట్టుబడి పెట్టిన మొత్తం ఎంత?

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RRB ALP Previous Paper 2 (Held On: 9 Aug 2018 Shift 2)
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  1. రూ. 4,500
  2. రూ. 5,000
  3. రూ. 3,750
  4. రూ. 4,750

Answer (Detailed Solution Below)

Option 2 : రూ. 5,000
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5 సంవత్సరాలకు పొందిన వడ్డీ - 4 సంవత్సరాలకు సంపాదించిన వడ్డీ = 375

అసలు రూ. P,

⇒ (P × 7.5 × 5) /100 – (P × 7.5 × 4) /100 = 375

⇒ (37.5 × P) /100 – (30 × P) /100 = 375

⇒ (7.5 × P) /100 = 375

∴ P = రూ. 5000
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