A person borrows some money for 8 years at a rate of simple interest. If the ratio of principal and total interest is 5 : 8, then what is the rate ( inpercentage) of interest?

Priya and khushi invested Rs.3000 together. Priya invested her amount at compound interest for ‘x/10’ years at x% rate interest and khushi invested half of her amount at compound interest and remaining half at simple interest at the same rate of interest for the same time period. [It is given that ‘x/10’ is a natural number] What is the value of ‘x’? Statement I: Ratio of investment of priya and khushi is 1 : 2 respectively and total sum received by them together after a particular time at x% rate of interest is Rs. 4280. Statement II: Simple interest received by khushi is Rs. 40 less than compound interest received by her. Statement III: Sum of simple interest and compound interest received by khushi after a certain time at x% rate of interest is Rs. 2500 Which of the above statement is redundant to find the answer of the given question?

A

Only statement I alone

B

Only Statement II alone

C

Only Statement III alone

D

Only either statement I and II together or statement II and III together.

E

None of These

Given below are three quantities named 1, 2 and 3. Based on the given information, you have to determine the relationship between the three quantities. You should use the given data and knowledge of Mathematics to choose between the possible answer. Quantity 1: An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes. Quantity 2: A sum of Rs. 725 is lent at the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest? Quantity 3: The difference between the compound interest and the simple interest on an amount of 15000 for 2 years is Rs. 96. What is the rate of interest per annum?

A

If Quantity 1 is maximum

B

If Quantity 2 is maximum

C

If Quantity 3 is maximum

D

If Quantity 1 = Quantity 2 = Quantity 3 or relation can’t be established

E

If any two quantities are same and greater than the third quantity

The following questions have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. A person borrowed some money at compound interest for 2 years. What will be the amount required to return after 2 years? I. If the amount was borrowed at simple interest, then after 4 years Rs. 1000 was required to pay as simple interest. II. The sum of money borrowed is 12 times the amount required to be paid as simple interest after 2 years. III. The rate of interest is 8% per annum.

A

I and II or III

B

All the statements together

C

II and III together

D

I and II together

E

None of the statements

The following question have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. Suman borrowed some amount of money at compound interest for 3 years. Find the amount to be paid by her after 3 years. Statement I: Simple interest on the same sum at the same rate of interest in 5 years will be 1/4th of the principal. Statement II: The simple interest on the sum after 6 years will be Rs. 12000. Statement III: The sum borrowed is 5 times the simple interest of 4 years.

A

Statement II and either Statement I or Statement III are sufficient to answer the question.

B

All the statements together required to answer the question.

C

All the statements together are not sufficient to answer the question.

D

Statement I and either Statement II or Statement III are sufficient to answer the question.

E

Any two statements together are sufficient to answer the question.

A person borrows some money for 4 years at the rate of simple interest. If the ratio of principal and total interest is 5 : 1, then what is the rate (in percentage) of interest?

A

5

B

25