Question Bank › General Aptitude › Simple Interest › ABC26GN4029ABC26GN4029 · Simple Interest Subject: General Aptitude · Chapter: Simple Interest · Exam: · Marks: · Difficulty:
The simple interest on a certain sum of money at the rate of 5\% p.a. for 8 years is ₹ 840. At what rate of interest the same amount of interest can be received on the same sum after 5 years ?
(a) 6\%
(b) 8\%
(c) 9\%
(d) 10\%
Answer Explanation S.I. $=₹ 840, R=5 \%, T=8$ years. Principal $=₹\left(\frac{100 \times 840}{5 \times 8}\right)=₹ 2100$. Now, $P=₹ 2100$, S.I. $=₹ 840, T=5$ years. ∴ $\quad$ Rate $=\left(\frac{100 \times 840}{2100 \times 5}\right) \%=8 \%$.
Explanation as extracted from the printed page; notation may be imperfect.
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