ABC26GN4028 · Simple Interest
Subject: General Aptitude · Chapter: Simple Interest · Exam: · Marks: · Difficulty:
If ₹ 64 amounts to ₹ 83.20 in 2 years, what will ₹ 86 amount to in 4 years at the same rate percent per annum ?
(a)₹ 114.80
(b)₹ 124.70
(c)₹ 127.40
(d)₹ 137.60
Answer
Explanation
$P=₹ 64, \mathrm{S} . \mathrm{I} .=₹(83.20-64)=₹ 19.20, T=2$ years. So, rate $=\left(\frac{100 \times 19.20}{64 \times 2}\right) \%=15 \%$. Now, $P=₹ 86, R=15 \%, T=4$ years. ∴ S.I. ₹ $\left(\frac{86 \times 15 \times 4}{100}\right)=₹ 51.60$. Amount $=₹(86+51.60)=₹ 137.60$.
Open in whiteboard · Browse this chapter in the app