A sum is invested for 3 years compounded at 5% , 10% and 20% respectively . In…
2024
A sum is invested for 3 years compounded at 5% , 10% and 20% respectively . In three years , if the sum amounts Rs 1386 , then find the sum.
- A.
Rs 1000
- B.
Rs 1200
- C.
Rs 1400
- D.
Rs 1500
Attempted by 11 students.
Show answer & explanation
Correct answer: A
Answer: Rs. 1000
Calculation:
Compute the combined growth factor: (1 + 5/100) × (1 + 10/100) × (1 + 20/100) = 1.05 × 1.10 × 1.20 = 1.386.
Original sum = Final amount ÷ combined factor = 1386 ÷ 1.386 = 1000.