Compound Interest Questions

FACTS  AND  FORMULAE  FOR  COMPOUND  INTEREST  QUESTIONS

 

 

Let Principal = P, Rate = R% per annum, Time = n years.

I.

1.  When interest is compound Annually:

Amount =P1+R100n

2.  When interest is compounded Half-yearly:

Amount = P1+(R2)1002n

3.  When interest is compounded Quarterly:

Amount = P1+R41004n

 

II.

1.  When interest is compounded Annually but time is in fraction, say 325 years.

Amount = P1+R1003×1+25R100

2.  When Rates are different for different years, say R1%, R2%, R3% for 1st, 2nd and 3rd year respectively.

Then, Amount = P1+R11001+R21001+R3100

 

III.  Present worth of Rs. x due n years hence is given by:

Present Worth = x1+R100n

Q:

The compound interest on Rs. 24000 at 10% per annum for 11⁄2 years, interest being compounded semi­annually is

A) Rs.3783 B) Rs.3777
C) Rs.3780 D) Rs.3781
 
Answer & Explanation Answer: A) Rs.3783

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

2 1492
Q:

The maturity value of a certain sum after two years at 20% p.a. interest compounded annually is Rs. 14,400/-. Find the Principal amount.

A) Rs.9000 B) Rs.9500
C) Rs.10,000 D) Rs.10,500
 
Answer & Explanation Answer: C) Rs.10,000

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

2 1484
Q:

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 24200, and Rs 26620 respectively, what is the rate of interest?

A) 10 percent B) 5 percent
C) 20 percent D) 16 percent
 
Answer & Explanation Answer: A) 10 percent

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

0 1483
Q:

On a certain principal if the simple interest for two years is Rs 1400 and compound interest for the two years is Rs 1449, what is the rate of Interest?

A) 7 percent B) 3.5 percent
C) 14 percent D) 10 percent
 
Answer & Explanation Answer: A) 7 percent

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

4 1482
Q:

In how many years will Rs 25,000 yield Rs 8,275 as compound interest at 10% per annum compounded annually?

A) 2 B) 4
C) 3 D) 5
 
Answer & Explanation Answer: C) 3

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

3 1474
Q:

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 5% per annum is Rs 45. The sum is

A) Rs 36000 B) Rs 72000
C) Rs 18000 D) Rs 54000
 
Answer & Explanation Answer: C) Rs 18000

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

2 1460
Q:

A bank offers 20% compound interest per half year. A customer deposits Rs 6000 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is

A) Rs 7680 B) Rs 3840
C) Rs 1920 D) Rs 960
 
Answer & Explanation Answer: B) Rs 3840

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: AIEEE , Bank Exams

0 1450
Q:

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

A) 50000 B) 60000
C) 40000 D) 80000
 
Answer & Explanation Answer: C) 40000

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams

1 1449