Quantitative Aptitude Ques 707

Question: The simple interest accrued on a certain principal in 5 yr at the rate of 12% per annul is Rs. 1536. What amount of the simple interest would one get if one invests Rs. 1000 more than the previous principal for 2 yr and at the same rate per cent per annum?

Options:

A) Rs. 845.40

B) Rs. 614.40

C) Rs. 2136

D) Rs. 1536

E) None of these

Show Answer

Answer:

Correct Answer: E

Solution:

  • In first condition, $ 1536=\frac{x\times 12\times 5}{100} $

$ \Rightarrow $ $ x=\frac{1536\times 100}{60}=2560 $ In second condition $ \text{SI=}\frac{3560\times 12\times 2}{100}=Rs\text{.}854\text{.40} $