Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
A) 3.6 B) 6
C) 18 D) Cannot be determined
Rohan took a loan of rs 1200
Answer: B) 6
Let rate = R% and time = R years.
Subject: Compound Interest – Quantitative Aptitude – Arithmetic Ability