RRB Simple Interest Questions, Download PDF For Practice
RRB Simple Interest Questions usually appear as easy quantitative problems in the Railway Recruitment Board exams. They often ask about finding total interest, calculating the principal, or determining the time required. Typically, 2 to 3 simple questions are expected in the exam, testing basic understanding of simple interest concepts.
Divya Sharma19 Oct, 2025
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RRB Simple Interest Questions: Candidates can get the questions in the RRB NTPC, Group D, and ALP exams from the Simple Interest section. It is expected that around 2 to 3 questions are asked in the exam. The RRB Simple Interest Questions level is easy to moderate. Candidates are required to focus on understanding the simple interest concepts and apply them accordingly helpful to solve the questions. Make a habit of using the RRB simple interest aptitude questions to improve the concepts before the exam.
RRB Simple Interest Questions
RRB Simple Interest Questions are one of the most common topics asked in the RRB Mathematics section. It checks a candidate’s understanding of basic arithmetic and percentage-based calculations. The questions are usually straightforward and can be solved quickly with the right formula and approach. Simple Interest (SI) is the interest calculated only on the principal amount, not on the accumulated interest. It is easy to understand and apply in real-life financial situations like bank deposits or loans.
RRB Simple Interest Tricks To Solve Questions
Candidates targeting to appear in the RRB exams in the future. They can apply the RRB Simple Interest Tricks to solve questions in the paper. Practice the tricks before the exam. It can be done by practising RRB simple interest previous year questions.
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RRB Simple Interest Tricks To Solve Questions |
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Trick / Formula |
Use / Explanation |
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SI = (P × R × T) / 100 |
Basic formula to find Simple Interest |
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A = P + SI |
To find the total amount after interest |
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P = (SI × 100) / (R × T) |
To find the Principal when SI, R, and T are given |
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R = (SI × 100) / (P × T) |
To find the Rate of interest |
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T = (SI × 100) / (P × R) |
To find the Time period |
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Convert months to years |
Time (in years) = Months / 12 |
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For quick % calculation |
Divide by 100 mentally to save time |
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Use ratio method |
Useful when rate or time changes proportionally |
RRB Simple Interest Practice Set
The RRB Simple Interest Practice Set has been designed for candidates preparing for the railway exams. They can solve the RRB Simple Interest questions for the exam. The questions have been compiled considering the latest pattern and difficulty level. Candidates can get a reality check on their preparation strategy.
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RRB Simple Interest Practice Set |
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Q. No. |
Question |
Options |
Correct Option |
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Q1 |
Simple interest on ₹4800 at 15% per annum for ‘n’ years is ₹2160. Find ‘n’. |
(A) 6 (B) 4 (C) 3 (D) 5 |
(C) 3 |
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Q2 |
A sum of ₹16,875 lent at simple interest; after 1 year 8 months, total is ₹18,000. Find rate per annum. |
(A) 3.7% (B) 4% (C) 5% (D) 6.66% |
(D) 6.66% |
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Q3 |
Saathi deposited ₹825 at 8% p.a. for 5 years. Find the interest. |
(A) ₹480 (B) ₹280 (C) ₹330 (D) ₹290 |
(C) ₹330 |
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Q4 |
At 8% p.a. simple interest, a sum becomes ₹300 in 2½ years. Find the sum invested. |
(A) ₹275 (B) ₹250 (C) ₹240 (D) ₹260 |
(B) ₹250 |
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Q5 |
Time required for ₹450 to earn ₹81 interest at 4.5% p.a. |
(A) 4.5 years (B) 4 years (C) 3 years (D) 3.5 years |
(B) 4 years |
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Q6 |
Simple interest on ₹1250 for 6 years at 4% per annum. |
(A) 360 (B) 350 (C) 375 (D) 300 |
(A) 360 |
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Q7 |
Simple interest on ₹3400 at 5% for 3 years. |
(A) ₹425 (B) ₹480 (C) ₹510 (D) ₹1275 |
(C) ₹510 |
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Q8 |
In how much time will ₹5000 amount to ₹6800 at 9% p.a.? |
(A) 3 years (B) 6 years (C) 4 years (D) 5 years |
(D) 5 years |
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Q9 |
Rahi deposited ₹600 at 8% p.a. for 5 years. Find the interest. |
(A) ₹240 (B) ₹200 (C) ₹280 (D) ₹480 |
(C) ₹240 |
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Q10 |
In how much time will ₹5000 at 15% p.a. amount to ₹6500? |
(A) 1 year (B) 2 years (C) 2.5 years (D) 1.5 years |
(B) 2 years |
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Q11 |
Find the sum if SI is ₹170 at 12.5% p.a. for 24 months. |
(A) ₹580 (B) ₹1280 (C) ₹680 (D) ₹425 |
(C) ₹680 |
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Q12 |
Simple interest on ₹8000 at 5% for 3¼ years. |
(A) ₹1250 (B) ₹1400 (C) ₹1200 (D) ₹1350 |
(B) ₹1400 |
Tips To Solve RRB Maths Simple Interest Questions
Candidates can adopt the tips provided to solve RRB Math simple interest questions. Try to focus on the concepts and speed to solve the questions for facing the real exam.
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Read the question carefully and understand what is asked before starting the calculation.
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Identify the known values like principal, rate, time, or amount and focus on finding the missing term.
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Keep your calculations quick and organized to avoid confusion during the exam.
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Convert months into years wherever needed to maintain accuracy in time-based questions.
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Strengthen your basic understanding of percentages and ratios as they help in solving interest problems easily.
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Practice mental calculations daily to improve speed and save time during the test.
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Revise simple interest concepts regularly so that formulas and methods stay fresh in your memory.
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Avoid mixing up simple interest and compound interest as both follow different methods.
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Double-check your final answer to ensure that it matches the logic of the question.
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Practice a variety of questions regularly to build confidence and accuracy in solving simple interest problems.
RRB Simple Interest Questions PDF
Candidates preparing for RRB exams can download the RRB Simple Interest Questions PDF for offline study.
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Concept notes and solved examples related to RRB NTPC simple interest questions.
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Formula summary and short tricks related to the simple interest topic.
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Practice sets for self-assessment to evaluate performance.
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Previous year RRB Group D simple interest questions.
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Studying from a compiled PDF helps in focused revision and quick reference before the exam.
RRB Simple Interest Questions
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RRB Simple Interest Questions FAQs
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