ABC26GN4026 · Simple Interest
Subject: General Aptitude · Chapter: Simple Interest · Exam: · Marks: · Difficulty:
In how many years, ₹ 150 will produce the same interest @ 8\% as ₹ 800 produce in 3 years @ $4 \frac{1}{2} \%$ ?
Answer
Explanation
$P=₹ 800, R=4 \frac{1}{2} \%=\frac{9}{2} \%, T=3$ years. Then, S.I. $=₹\left(800 \times \frac{9}{2} \times \frac{3}{100}\right)=₹ 108$. Now, $P=₹ 150$, S.I. $=₹ 108, R=8 \%$. ∴ Time $=\left(\frac{100 \times 108}{150 \times 8}\right)$ years $=9$ years.
Explanation as extracted from the printed page; notation may be imperfect.
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