Final answer:
The rate of return per quarter for an investment that offers to quintuple your money in 24 months is approximately 0.339.
Step-by-step explanation:
To find the rate of return per quarter, we need to calculate the growth rate quarterly. A quintuple means multiplying the original amount by 5. So, for an investment to quintuple in 24 months, it needs to grow by a factor of 5. To find the quarterly growth rate, we can use the formula:
(1 + r)^4 = 5
Solving this equation, we find that the rate of return per quarter is approximately 0.339