All Exams Test series for 1 year @ ₹349 only
Question

A borrowed $₹58,000$ from B at 8% per annum simple interest for 2 years. He lent the same sum to C at 10% per annum compound interest, compounded annually for 2 years. How much did he earn (in $₹$) in the transaction at the end of 2 years?

This question was previously asked in
SSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)
The correct answer is
2,900

Calculating Profit from Simple vs. Compound Interest Transaction

This problem involves calculating the profit made from a financial transaction where a principal amount is borrowed at a simple interest rate and then lent out at a compound interest rate. We need to find the difference between the interest earned (compound) and the interest paid (simple) over the specified period.

Simple Interest (SI) Calculation

First, let's calculate the simple interest A has to pay to B.

The formula for Simple Interest is:

$$SI = \frac{P \times R \times T}{100}$$

Where:

  • P = Principal amount = $₹58,000$
  • R = Rate of interest per annum = 8%
  • T = Time period in years = 2 years

Plugging the values into the formula:

$$SI = \frac{58000 \times 8 \times 2}{100}$$ $$SI = 580 \times 16$$ $$SI = ₹9,280$$

So, A pays $₹9,280$ as simple interest to B.

Compound Interest (CI) Calculation

Next, let's calculate the amount A receives from C using compound interest.

The formula for the Amount (A) compounded annually is:

$$A = P \left(1 + \frac{R}{100}\right)^T$$

Where:

  • P = Principal amount = $₹58,000$
  • R = Rate of interest per annum = 10%
  • T = Time period in years = 2 years

Calculating the total amount received after 2 years:

$$A = 58000 \left(1 + \frac{10}{100}\right)^2$$ $$A = 58000 \left(1 + 0.1\right)^2$$ $$A = 58000 \left(1.1\right)^2$$ $$A = 58000 \times 1.21$$ $$A = ₹70,180$$

Now, we calculate the compound interest earned by A:

$$CI = \text{Amount} (A) - \text{Principal} (P)$$ $$CI = 70180 - 58000$$ $$CI = ₹12,180$$

So, A earns $₹12,180$ from C as compound interest.

Profit Earned in Transaction

The profit earned by A is the difference between the compound interest received from C and the simple interest paid to B.

Profit = CI - SI

Profit = $12,180 - 9,280$

Profit = $₹2,900$

Therefore, A earned $₹2,900$ in the transaction at the end of 2 years.

Was this answer helpful?

Similar Questions

  1. What is the difference (in ₹, to the nearest rupee) between the simple interest and compound interest on ₹24,500 in two years at the rate of 8% per annum? The compound interest is compounded annually.
  2. What is the difference between the compound interest and simple interest (in ₹, to the nearest integer) on ₹12,000 in 2 years at 8% per annum, compounded annually?
  3. The simple interest on a sum of money at 10% per annum for 2 years is ₹8,000. What will be the compound interest (in ₹) on the same sum for the same period at the same rate compounded annually?
  4. The difference between the interest compounded annually and the simple interest on a sum of ₹31,250 for 2 years at 8% per annum is:
  5. The difference between the compound interest and simple interest on $x$ at a rate of 8.5% per annum for 2 years is ₹260.10. What is the value of $x$?
  6. The difference between the compound interest and simple interest for the amount ₹5,000 in 2 years is ₹50. The rate of interest is:


Important Questions from Simple and Compound Intrest

  1. Amit had invested same amount of sums at simple as well as compound interest, compounded annually. The time period of investment for both the sums was 2 years and rate of interest too was the same, 4% per annum. At the end, he found a difference of ₹43 in both the interests received. What were the sums (in ₹) invested?

  2. When the difference between compound interest, compounded annually, and simple interest for three years is ₹186 at 10% interest per annum, the principal is ₹______.

  3. When the difference between compound interest, compounded annually, and simple interest for three years is ₹217 at 10% interest per annum, the principal is ₹______.
  4. When the difference between compound interest, compounded annually, and simple interest for three years is ₹228 at 4% interest per annum, the principal is ₹______.
  5. The difference between the compound interest, compounded annually and the simple interest if ₹17,700 is deposited at 4% rate of interest per annum for 2 years is:
Need Expert Advice?
Upcoming Exams
SSC CGL
September 30, 2026
UPSSSC PET
October 23, 2026
Test Series
SSC Selection Post img
SSC
SSC Selection Post (Graduation) (Phase 12) 2025 Mock Test Series
489 Tests 5 Tests Free
5485 Attempts
4.8(316)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App