Question

In each question, a question is followed by two statements I and
II. You have to decide whether the data given in the statements is sufficient to answer the question. What is the principal sum invested at simple interest?
I. The rate of interest is 8% per annum and the simple interest earned in 4 years is Rs. 6400.
II. The amount after 4 years is Rs. 26400.

Q: Answer-In each question, a question is followed by two statements I and II. You have to decide whether the...

Statement I SI P R T 100 6400 P 8 4 100 6400 32P 100 6400 100 32P P 640000 32 20000 Principal uniquely found I alone is sufficient. Statement II Amount after 4 years 26400, but rate and interest not given. Many P, R combinations possible II alone not sufficient. Only I alone is sufficient.