ABC26GN4025 · Simple Interest

Subject: General Aptitude · Chapter: Simple Interest · Exam: 2007 · Marks: · Difficulty:

₹ 6000 becomes ₹ 7200 in 4 years at a certain rate of simple interest. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will be
(a)₹ 8000
(b)₹ 8250
(c)₹ 9000
(d)₹ 9250
Answer
Answer (as printed): B
Explanation
$P=₹ 6000$, S.I. $=₹(7200-6000)=₹ 1200, T=4 \mathrm{yrs}$. $$\therefore \quad \text { Rate }=\left(\frac{100 \times 1200}{6000 \times 4}\right) \%=5 \% .$$ New rate $=(1.5 \times 5) \%=7.5 \%$.

Explanation as extracted from the printed page; notation may be imperfect.

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