Question : The sum for 2 years gives a compound interest of Rs. 3225 at the rate of 15% per annum. The sum is:
Option 1: Rs. 10000
Option 2: Rs. 20000
Option 3: Rs. 15000
Option 4: Rs. 32250
New: SSC CGL 2025 Tier-1 Result
Latest: SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: Rs. 10000
Solution : Given: The sum for 2 years gives a Compound interest of Rs. 3225 at the rate of 15% per annum. Let the sum be p. Now applying the compound interest formula we get, $p[(1+\frac{15}{100})^2–1]=3225$ ⇒ $p[(\frac{23}{20})^2–1]=3225$ ⇒ $p[(\frac{529}{400})–1]=3225$ ⇒ $p(\frac{129}{400})=3225$ ⇒ $p=3225×\frac{400}{129}=10000$ Hence, the correct answer is Rs. 10000.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile