What is the principal sum? I. The sum amounts to Rs. 690 in 3 years at S.I. II. The sum amounts to Rs. 750 in 5 years at S.I. III. The rate of interest is 5% p.a.
Correct answer E. Any two of the three
Topic / 19 questions
Simple Interest MCQs
Simple Interest MCQs test calculations of interest charged only on the original principal, using the formula SI = P × R × T ÷ 100. They are common in NTS, banking, SSC and IBPS papers. Each question has an instant answer, so you can check your working and get faster at finding rate, time or principal.
- Numbers 104
- Percentage 103
- Ratio and Proportion 80
- Age Questions 80
- Time and Work 73
- Fraction and Decimal 72
- Equations and Inequalities 64
- Average 59
- Basic Algebra 58
- Probability 45
- Odd Man Out and Series 43
- Boats and Streams 34
- Counting 32
- Problems on Trains 30
- Logarithm 30
- Problems on H.C.F and L.C.M 30
- Calendar 30
- Road Problems 26
- Word Problems 25
- Men and Food 24
- Compound Interest 21
- Time and Distance 19
- Clock 19
- Area 19
- Volume and Surface Area 19
- Simple Interest 19
- Problems on Numbers 17
- Pipes and Cistern 17
- True Discount 16
- Problems on Ages 15
- Alligation or Mixture 15
- Simplification 15
- Permutation and Combination 14
- Stocks and Shares 14
- Train Problems 14
- Races and Games 13
- Mixture Problems 13
- Banker's Discount 12
- Profit and Loss 12
- Square Root and Cube Root 11
- Surds and Indices 8
- Height and Distance 7
- Partnership 6
What is the rate of simple interest? I. The total interest earned was Rs. 4000. II. The sum was invested for 4 years.
Correct answer B. II alone sufficient while I alone not sufficient 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.
Correct answer B. II alone sufficient while I alone not sufficient to answer
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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.
Correct answer B. II alone sufficient while I alone not sufficient to answer
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.
Correct answer B. II alone sufficient while I alone not sufficient to answer
A person borrows Rs. 5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6% p.a for 2 years. Find his gain in the transaction per year.
Correct answer A. Rs. 112.50
A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Correct answer D. Cannot be determined
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?
Correct answer C. 2 : 3
A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:
Correct answer C. 12%
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A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:
Correct answer C. Rs. 15,000
A sum of Rs. 725 is lent in 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?
Correct answer E. None of these
A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:
Correct answer D. 10%
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:
Correct answer B. 10.25%
A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?
Correct answer D. 6%
Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest?
Correct answer B. 6
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How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?
Correct answer B. 4 years
A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
Correct answer D. Rs. 8925
Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
Correct answer A. Rs. 6400
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:
Correct answer C. Rs. 698
About Simple Interest MCQs
This Aptitude topic uses one main formula and its rearrangements. Questions ask for the rate of interest when a sum grows to a known amount in a set number of years, the principal when amounts after two different periods are given, and the combined rate when money is lent to two people for different times. Amount equals principal plus interest, and with simple interest the interest is the same every year. A quick method for two-amount problems is to subtract the earlier amount from the later one to get the interest for the extra years, then work backwards to the principal.
Exams that include Simple Interest MCQs
Pakistan
- NTS
- GAT
- ISSB
- Army/Navy/PAF initial tests
- FPSC
- PPSC
- Banking job tests
India
- SSC CGL
- SSC CHSL
- IBPS PO
- SBI PO
- RRB NTPC
- Campus placements
Bangladesh
- BCS
- Bank job exams
- Government job tests
Frequently asked questions
What is the formula for simple interest?
Simple interest equals principal × rate × time ÷ 100, where the rate is per cent per year and time is in years. The amount is principal plus simple interest. For example, Rs. 12,500 growing to Rs. 15,500 in 4 years earns Rs. 3,000, so the rate is 6 per cent.
How is simple interest different from compound interest?
Simple interest is calculated only on the original principal, so it is the same every year. Compound interest is calculated on the principal plus interest already added, so it grows each period. For the same rate and time beyond one year, compound interest is always higher.
How many Simple Interest MCQs are on MCQs360?
MCQs360 has 19 Simple Interest MCQs, each with an instant answer, free and with no sign-up. Practise rearranging the formula for rate and time, as banking and SSC papers rarely ask you to find the interest directly.
Last reviewed October 2026