SI CI Questions for CAT: Concepts, Formulae, Books, Download Sample Questions

What are SI CI Questions for CAT?

Simple Interest and Compound Interest questions are shortly known as SI CI CAT Questions. Considering the previous years’ analysis, SI CI Questions for CAT carry high importance in CAT Exam. It is an important part of the CAT Arithmetic Question and holds great relevance. Prior knowledge and understanding of all the formulas and concepts are highly accepted to solve SI CI Questions for CAT efficiently and accurately. You can expect 1-3 CAT SI CI Questions with moderate difficulty levels. So try to study all the concepts related to this part to score better in the exam.

Important Formulas for SI CI CAT Questions

For candidates to solve the SI CI Questions for CAT, it is recommended that they are through with the formulae of the said topic. The important formulae for CAT SI CI Questions are given below:

SI CI Questions for CAT Concepts	Important Formulas
Simple Interest (SI)	SI = (PxTxR)/100
Amount	Amount (A) = Principal (P) + Interest (I)
Compound Interest (CI)
The amount to be paid if money is borrowed at compound interest for N number of years
If the interest is compounded half-yearly or semi-annually
If the interest is compounded quarterly
If the interest is compounded monthly
If the interest is compounded daily
If it is a leap year,
If the interest rate is R1% for the first year, R2% for the second year, and R3% for 3rd year, then the amount can be determined as
If the principal amount is P and rate of interest is R, then the difference between compound interest and simple interest for 2 years.
If a certain sum becomes ‘x’ times in n years, then the rate of compound interest will be
If a sum of money P amounts to A1 after T years at CI and the same sum of money amounts to A2 after (T + 1) years at CI, then we can write

Download SI CI Questions for CAT PDF

As 1-2 SI CI CAT Questions are usually asked in the exam, candidates are advised to practice this topic. Candidates are advised to practice as many questions as possible in order to have a clear understanding of the types of questions that can be asked in the exam. For the ease of the candidates, SI CI Questions for CAT PDF are given below:

☛ Download Simple Interest and Compound Interest CAT Questions PDF

Sample CAT Questions on SI CI Questions

Candidates must practice SI CI Questions for CAT so that they can ace the QA section easily. Check examples of CAT SI CI Questions given below to understand the types of questions that can be asked in the exam.

Question 1: What Principal amount will produce Rs. 500 as simple interest at an interest rate of 5% per annum in 6 years?

A.Rs. 1999.5

B.Rs. 1666.6

C.Rs. 15000

D.Rs. 1444.5

Answer: B

Explanation

Total interest = Rate of interest x Time

= 6 x 5%

= 30%

Therefore, 30% = 500

Required principal amount (100%) = 500/30 x 100 = Rs. 1666.66

Question 2: In how many years will the principal of Rs. 1000 will give an interest of Rs. 200 at an interest rate of 5%?

A.5

B.4

C.4.5

D.3.5

Answer: B

Explanation

Principal = Rs 1000

At 5% interest rate, interest per year = Rs 50

Number of years required for Rs 200 interest = 200 ÷ 50 = 4

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Question 3: Akash invested a certain sum in a scheme offering simple interest for 5 years at the interest rate of 8%. Rohit invested three times the sum invested by Akash in the same scheme for 2 years. If the difference between the amounts of Rohit and Akash after respective periods is Rs. 1648, what was the sum invested by Rohit?

A.Rs. 56400

B.Rs. 64100

C.Rs. 76200

D.Rs. 61800

Answer: D

Explanation

Question 4: The rate of simple interest on a sum is 6% per annum for the first 3 months, for the next five months, the rate of interest is 8% per annum and 5% per annum for the period beyond 8 months. If the total simple interest is Rs 3510 for the period of one year then find what is the sum.

A.Rs. 56100

B.Rs. 54000

C.Rs. 56000

D.Rs. 46100

Answer: B

Explanation

Question 5: Arun invested Rs. 10000 at the rate of 10% compound interest. If in first-year interest is calculated half-yearly and annually in the second year, then find the total interest received by Arun after 2 years.

A.Rs. 2127.5

B.Rs. 2425.5

C.Rs. 2724.2

D.Rs. 3225.5

Answer: A

Explanation

Question 6: David deposited Rs. Q at 20% per annum and Charles deposited Rs. (Q – 8000) at the rate of 10% per annum. If at the end of two years, the total compound interest received is Rs. 8720, then find the capital invested by Charles.

A.Rs. 6000

B.Rs. 8000

C.Rs. 10000

D.Rs.9000

Answer: B

Explanation

Question 7: Pritam deposited Rs. ‘x’ in bank A at 30% compound interest and Rs. ‘x + 600′ in bank B at 36% simple interest for 3 years. If the interest earned by him from bank A was Rs. 1107 more than the interest earned by him from bank B, then find the value of ‘x’.

A.Rs. 16000

B.Rs. 12000

C.Rs. 15000

D.Rs. 20000

Answer: C

Explanation

Question 8: The difference between the compound interest and the simple interest received after 3 years on the sum of Rs. 40000 is Rs. 3104. Find the rate of interest for the third year if the rate of interest for the first and second years is 10% and 20%, respectively.

A.12%

B.18%

C.24%

D.8%

Answer: B

Explanation

Best Books to Prepare CAT SI CI Questions

In order to solve the SI CI Questions for CAT, candidates must have their fundamentals clear. They should refer to quality CAT Books and study material. Candidates can check the study notes available at BYJU’S Exam Prep App and also the books curated by our experts from IIMs, which are available to our candidates who have enrolled for the CAT Online Coaching.

How to Prepare SI CI Questions for CAT?

Based on previous year’s trends, candidates can expect 1-3 SI CI CAT Questions. Candidates should practice CAT Previous Year Question Paper and attempt mock tests so that they have an understanding of the difficulty level of the SI CI Questions for CAT asked in the exam. Candidates can refer to the sessions available on BYJU’S Exam Prep App to understand the topic. A few tips to prepare for SI CI CAT Questions are given below:

• Candidates should have clear concepts about interest in order to solve SI CI Questions for CAT.
• They should solve previous year’s papers to get an idea of the type of questions asked.
• Candidates should attempt CAT Mock tests to get an actual exam-like experience.
• Study SI CI Questions for CAT concepts and formulas and revise them in your free time. It will help to grasp the knowledge entirely.

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