Aptitude - Simple Interest

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Important Formulas

Exercise

General Questions
Data Sufficiency 1
Data Sufficiency 2

"No one is as deaf as the man who will not listen."

- (Proverb)

Directions to Solve

Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and

Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
Give answer(E) if the data in both Statements I and II together are necessary to answer the question.

The simple interest on a sum of money is Rs. 50. What is the sum?
I.
The interest rate is 10% p.a.
II.
The sum earned simple interest in 10 years.

A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer

What is the sum which earned interest?
I.
The total simple interest was Rs. 7000 after 7 years.
II.
The total of sum and simple interest was double of the sum after 5 years.

A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer

What percentage of simple interest per annum did Anand pay to Deepak?
I.
Anand borrowed Rs. 8000 from Deepak for four years.
II.
Anand returned Rs. 8800 to Deepak at the end of two years and settled the loan.

A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer

What is the rate of simple interest?
I.
The total interest earned was Rs. 4000.
II.
The sum was invested for 4 years.

A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer