Find the simple interest (in closest integral ₹) on ₹3000 at 8% per annum rate of interest for the period from 23 February 2024 to 24 April 2024
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Correct answer: (D) 40
RRB JE · Mathematics
Simple & Compound Interest Previous Year Questions
36 Simple & Compound Interest (Mathematics) questions asked in RRB JE previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.
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A lens has ________ principal foci.
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Correct answer: (C) 2
If the interest earned during the 2nd year on a certain sum is ₹4719, and the rate of interest is 10% per annum compounded annually, then the sum is:
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Correct answer: (B) ₹42900
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 4 February 2024 to 5 April 2024
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Correct answer: (C) 35
If at same rate of interest, in 2 years, the simple interest is ₹56 and compound interest is ₹58, then what is the principal (in ₹)?
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Correct answer: (A) 392
Sakshi invested a sum of ₹8900 at 10% per annum compound interest, componded annually. If she received an amount of ₹10769 after n years, the value of n is:
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Correct answer: (A) 2
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 14 February 2024 to 15 April 2024
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Correct answer: (D) 35
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 3 February 2024 to 4 April 2024
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Correct answer: (B) 35
In a convex mirror, the principal focus is located _____.
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Correct answer: (B) behind the mirror
Suman invested a sum of ₹3500 at 20% per annum compound interest, componded annually. If she received an amount of ₹6048 after n years, the value of n is:
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Correct answer: (A) 3
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 5 February 2024 to 6 April 2024
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Correct answer: (D) 35
If the interest earned during the 2nd year on a certain sum is ₹3726, and the rate of interest is 15% per annum compounded annually, then the sum is:
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Correct answer: (A) ₹21600
If at same rate of interest, in 2 years, the simple interest is ₹56 and compound interest is ₹64, then what is the principal (in ₹)?
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Correct answer: (B) 98
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 11 February 2024 to 12 April 2024
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Correct answer: (B) 35
If at same rate of interest, in 2 years, the simple interest is ₹56 and compound interest is ₹72, then what is the principal (in ₹)?
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Correct answer: (C) 49
Find the simple interest (in closest integral ₹) on ₹3000 at 8% per annum rate of interest for the period from 25 February 2024 to 26 April 2024
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Correct answer: (D) 40
If the interest earned during the 2nd year on a certain sum is ₹9911, and the rate of interest is 10% per annum compounded annually, then the sum is:
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Correct answer: (A) ₹90100
Find the simple interest (in closest integral ₹) on ₹3000 at 8% per annum rate of interest for the period from 22 February 2024 to 23 April 2024
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Correct answer: (A) 40
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 12 February 2024 to 13 April 2024
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Correct answer: (B) 35
Komal invested a sum of ₹5000 at 20% per annum compound interest, componded annually. If she received an amount of ₹8640 after n years, the value of n is:
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Correct answer: (C) 3
How do rays parallel to the principal axis behave after reflection from a convex mirror?
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Correct answer: (B) They appear to diverge from a point on the principal axis.
Amit had invested same amount of sums at simple as well as compound interest,
compounded annually. The time period of both the sums was 2 years and rate of
interest too was same 10% per annum. At the end, he found a difference of ₹97 in both
the interests received. What were the sums (in ₹) invested?
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Correct answer: (C) 9,700
Akshay has borrowed an amount of ₹440000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 5% per annum after 4 years?
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Correct answer: (D) 88000
When using the sign convention for spherical mirrors, which direction along the
principal axis is considered positive?
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Correct answer: (A) To the right of the origin (along + x-axis)
Gopal has borrowed an amount of ₹420000 from a bank to start a business. How much
simple interest (in ₹) will he pay at a rate of 5% per annum after 4 years?
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Correct answer: (D) 84000
The difference between compound interest, compounded annually, and simple interest
for 3 years at a rate of 20% per annum is ₹256. What is the principal lent?
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Correct answer: (B) ₹2,000
David has borrowed an amount of ₹440000 from a bank to start a business. How much
simple interest (in ₹) will he pay at a rate of 6% per annum after 2 years?
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Correct answer: (A) 52800
If a point is located below the principal axis of a spherical mirror, what sign is assigned
to its perpendicular distance according to the sign convention for spherical mirrors?
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Correct answer: (D) Negative
Kiran has borrowed an amount of ₹4,40,000 from a bank to start a business. How much
simple interest (in ₹) will he pay at a rate of 7% per annum after 2 years?
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Correct answer: (C) 61600
Amit had invested same amount of sums at simple interest as well as compound
interest, compounded annually. The time period of both the sums was 2 years and rate
of interest too was the same 10% per annum. At the end, he found a difference of ₹45 in
both the interests received. What were the sums (in ₹) invested in each case?
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Correct answer: (C) 4,500
Mahesh has borrowed an amount of ₹420000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 6% per annum after 2 years?
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Correct answer: (A) 50400
Rupesh has borrowed an amount of ₹4,40,000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 7% per annum after 3 years?
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Correct answer: (B) 92400
If at the same rate of interest, in 2 years, the simple interest is ₹48 and compound
interest, compounded annually, is ₹54, then what is the principal (in ₹)?
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Correct answer: (C) 96
Mahesh has borrowed an amount of ₹4,40,000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 6% per annum after 4 years?
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Correct answer: (B) 1,05,600
A physicist uses a convex lens to focus sunlight onto a piece of paper and notices the
smallest, brightest spot forms at a certain distance from the lens. Which property of the
lens does this experiment help to determine?
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Correct answer: (D) The experiment helps to determine the focal length of the lens.
The difference between simple interest and compound interest, compounded annually,
on a certain sum of money for 2 years at 11% per annum is ₹371. Find the sum. [Give
your answer rounded off to the nearest integer.]
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Correct answer: (D) ₹30,661
How to use these RRB JE Mathematics questions
Every question here was asked in a real RRB JE paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full RRB JE papers as timed tests to check your speed under exam conditions.