A sum of money in 6 years become 2688 and in 14 years it becomes rs 3072 What is the principal sum w...........

Quantitative Aptitude (CDS) Simple Interest

A sum of money in 6 years become 2688 and in 14 years it becomes rs. 3072. What is the principal sum where a simple rate of interest is to be charged?

2300

2500

2600

2400

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Explanation:

3072-2688=384
Rs. 384 is the interest for 8 years
So, Rs. 48 is the interest for 1 year
It means Rs.288 is the interest for 6 years at the actual principal.

Principal = 2688- 288= Rs. 2400