Question
Download Solution PDFThe simple interest on a certain principal amount for 4 years at 10% per annum is half of the compound interest on Rs. 1000 for 2 years at 20% per annum. Find the principal amount
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
The effective rate of 20% for 2years is = 20 + 20 + (20 × 20)/100 = 44%
So, C.I on 1000 for 2 years is = 1000 × 44/100 = 440
Let the principal invest in S.I be P
Now, according to the question,
(P × 4 × 10)/100 = 440/2
⇒ P = 1100/2 = 550
∴ The principal amount be 550
Last updated on Jun 12, 2025
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