Question
Download Solution PDFS यांनी दोन खात्यांमध्ये एकूण ₹50,000 जमा केले आहेत, जी अनुक्रमे वार्षिक 8% आणि 12% सरळव्याज देतात. एक वर्षानंतर, त्यांना एकूण ₹5,200 मिळतात. तर त्यांनी 12% व्याजदर असलेल्या खात्यात किती रक्कम जमा केली आहे?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
मुद्दल (P) = ₹50,000
पहिला व्याजदर = 8%; दुसरा व्याजदर = 12%
एकूण सरळव्याज (SI) = ₹5,200
वापरलेले सूत्र:
सरळव्याज (SI) = (P × R × T)/100
येथे, P = मुद्दल; R = व्याजदर; T = मुदत
गणना:
समजा, 12% व्याजदरावर असलेली रक्कम = x
तर, 8% व्याजदरावर असलेली रक्कम = (50,000 - x)
प्रश्नानुसार:
⇒ (50,000 - x) × 8% + x × 12% = 5200
⇒ (50,000 × 8%) - (x × 8%) + (x × 12%) = 5200
⇒ (x × 4%) = 5200 - 4000
⇒ x = (1200 × 100)/4 = 30000 रुपये
∴ 30000 हे योग्य उत्तर आहे.
Shortcut Trickगणना:
एकूण व्याजदर = (5200 × 100)/50000 = 52/5 = 10.4%
आता
8% वरील रक्कम : 12% वरील रक्कम = 1.6 : 2.4
⇒ 2 : 3
⇒ 5 एकक = 50000
⇒ 3 एकक = (50000 × 3)/5 = 30000 रुपये
∴ 30000 हे योग्य उत्तर आहे.
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