Question : A sum triple itself in 9 years at simple interest. Find the rate of interest per annum.
Option 1: $38 \frac{2}{9}$%
Option 2: $33 \frac{1}{3}$%
Option 3: $27 \frac{1}{9}$%
Option 4: $22 \frac{2}{9}$%
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: $22 \frac{2}{9}$%
Solution :
Let P be the principal and R be the rate of interest.
Total amount = 3P
Simple interest, SI = 3P – P = 2P
Term, n = 9 years
So, SI = $\frac{PnR}{100}$
⇒ 2P = $\frac{P×9×R}{100}$
⇒ R = $\frac{200}{9}$ = $22\frac{2}{9}$%
Hence, the correct answer is $22\frac{2}{9}$%.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
