वह दर क्या होगी जिस पर कोई राशि साधारण ब्याज पर 12 वर्षों में स्वयं की चार गुना हो जाएगी?

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SSC CGL 2023 Tier-I Official Paper (Held On: 24 Jul 2023 Shift 1)
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  1. 20%
  2. 25%
  3. 35%
  4. 30%

Answer (Detailed Solution Below)

Option 2 : 25%
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Detailed Solution

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दिया गया है:

समय = 12 वर्ष

राशि स्वयं की चार गुनी हो जाती है।

प्रयुक्त सूत्र:

साधारण ब्याज = (P × R × T)/100

जहाँ P → मूलधन

T → समय

R → दर

गणना:

माना मूलधन 'x' है।

इसलिए, मिश्रधन = 4x

साधारण ब्याज = 3x

साधारण ब्याज = (P × R × T)/100

⇒ 3x = (x × R × 12)/100

⇒ R = (3 × 100)/12

⇒ R = 25%

वार्षिक ब्याज दर 25% है।

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