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4 വർഷത്തേക്ക് പ്രതിവർഷം 5% എന്ന നിരക്കിൽ ഒരു നിശ്ചിത തുകയുടെ പലിശ 800 രൂപയായിരുന്നു. അതേ കാലയളവിലെയും അതേ പലിശ നിരക്കിലെയും അതേ തുകയുടെ കൂട്ടുപലിശ എത്രയായിരിക്കും?

A850

B840

C855

D862

Answer:

D. 862

Read Explanation:

SI = (P × R × T)/100 800 = (P × 5 × 4)/100 P = 4000 CI = 4000[ 1 + 5/100]^4 - 4000 CI = 4000 × [105/100]^4 - 4000 CI = [4000 × 21/20 × 21/20 × 21/20 × 21/20] - 4000 CI = 4862.025 - 4000 C.I = 862.025 ≈ 862 രൂപ


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