A sum of Rs 5000 becomes Rs 8000 in 3 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is yearly), then what will be the amount (in Rs) after 3 years?

Question

নিচের অপশন গুলা দেখুন

• 8640
• 9220
• 8260
• 8880

Answer 1

সঠিক উত্তর হচ্ছে: 8640

ব্যাখ্যা: S.I = Amount – Principal = 8000 – 5000 = 3000
S.I. = (P × R × T)/100
⇒ 3000 = (5000 × R × 3)/100
⇒ R = 1000/50 = 20% = 1/5
∴ Amount after 3 years (at C.I.) = 5000 × 6/5 × 6/5 × 6/5 = 8640