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A certain sum of money was invested at S.I for 3 years . If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is?
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A certain sum of money was invested at S.I for 3 years . If it has inv...
**Problem Statement:**

A certain sum of money was invested at S.I for 3 years. If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is?

**Solution:**

Let us assume that the principal amount is P and the rate of interest is R.

Given that the sum is invested for 3 years.

We know that,

Simple Interest (SI) = (P x R x T)/100

Where T is the time period in years.

**Calculation:**

Let us assume that the rate of interest is R%.

Therefore, the SI for 3 years at the rate of R% is,

SI1 = (P x R x 3)/100

Similarly, if the rate of interest is increased by 7%, then the new rate of interest will be (R + 7)%

Therefore, the SI for 3 years at the rate of (R + 7)% is,

SI2 = (P x (R + 7) x 3)/100

Given that the difference in SI is Rs. 882/-

Therefore, we can write the equation as,

SI2 - SI1 = 882

(P x (R + 7) x 3)/100 - (P x R x 3)/100 = 882

3PR + 21P - 3PR = 88200

21P = 88200

P = Rs. 4200

Therefore, the sum invested is Rs. 4200.

**Conclusion:**

Hence, the sum invested at a rate of Rs. 7% higher for 3 years is Rs. 4200.
Community Answer
A certain sum of money was invested at S.I for 3 years . If it has inv...
Let the sum required be Rs. P,
Given, number of years, N. = 3 years

Case 1

Rate of interest = r%
SI = P× N× R
= P × 3 × R
= 3PR. (1)

Case 2

Rate of interest = r+7%
SI = P × N × ( r + 0.07)
= 3PR + 0.21P - (2)

Given, (2) - (1) = Rs. 882

hence we have,

0.21P = 882

P = Rs. 4200/-
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A certain sum of money was invested at S.I for 3 years . If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is?
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A certain sum of money was invested at S.I for 3 years . If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about A certain sum of money was invested at S.I for 3 years . If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A certain sum of money was invested at S.I for 3 years . If it has invested at rate 7% higher, then the interest have been 882/- more, then the sum is?.
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