Question
Download Solution PDFयदि चक्रवृद्धि ब्याज वार्षिक रूप से संयोजित किया जाता है, तो 2 वर्षों में ₹4,800 की राशि ₹5,043 हो जाती है, तो प्रति वर्ष ब्याज दर कितनी है?
This question was previously asked in
RPF Constable 2024 Official Paper (Held On: 02 Mar, 2025 Shift 1)
Answer (Detailed Solution Below)
Option 3 : 2.5%
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Detailed Solution
Download Solution PDFदिया गया है:
मूलधन = ₹4800
मिश्रधन = ₹5043
समय = 2 वर्ष
प्रयुक्त सूत्र:
A = P(1 + r/100)t
गणना:
प्रश्न के अनुसार
A = P(1 + r/100)t
⇒ 5043 = 4800 × (1 + r/100)2
⇒ (1 + r/100)2 = (5043/4800)
⇒ (1 + r/100)2 = (1681/1600)
⇒ (1 + r/100)2 = (41/40)2
⇒ (100 + r)/100 = 41/40
⇒ (100 + r)/5 = 41/2
⇒ 200 + 2r = 205
⇒ 2r = (205 – 200)
⇒ 2r = 5
⇒ r = 2.5%
∴ सही उत्तर विकल्प (3) है।
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