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The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Calculate the S.I. on the same sum for double the time at half the rate percent per annum.

  • a)
    Rs. 400

  • b)
    Rs. 500

  • c)
    Rs. 600

  • d)
    Rs. 800

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Cal...
Let the principal be 100x
First year interest = 10% = 10x
Second year interest =10% = 10/100 *110x =11x
Total interest = 21x
If interest is 21x , principal is 100x
If interest is Rs 525 , principal is = 525 /21x *100x = Rs 2500
Simple interest on Rs 2500 at 5% for 4 years is
2500 x 4 x 5/100= Rs500 
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Most Upvoted Answer
The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Cal...
Given Data:
Compound Interest (C.I.) for 2 years at 10% per annum = Rs. 525

Calculation of Principal:
Let the principal be P.
Using the formula for compound interest:
C.I. = P[(1 + R/100)^T - 1]
525 = P[(1 + 10/100)^2 - 1]
525 = P[(1.1)^2 - 1]
525 = P[1.21 - 1]
525 = P*0.21
P = 525/0.21
P = Rs. 2500

Calculation of Simple Interest:
Given Rate = 10% per annum
New Rate = 10%/2 = 5% per annum
New Time = 2 years * 2 = 4 years
Using the formula for simple interest:
S.I. = (P * R * T)/100
S.I. = (2500 * 5 * 4)/100
S.I. = (50000)/100
S.I. = Rs. 500
Therefore, the Simple Interest on the same sum for double the time at half the rate percent per annum is Rs. 500, which is option B.
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The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Calculate the S.I. on the same sum for double the time at half the rate percent per annum.a)Rs. 400b)Rs. 500c)Rs. 600d)Rs. 800Correct answer is option 'B'. Can you explain this answer?
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The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Calculate the S.I. on the same sum for double the time at half the rate percent per annum.a)Rs. 400b)Rs. 500c)Rs. 600d)Rs. 800Correct answer is option 'B'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Calculate the S.I. on the same sum for double the time at half the rate percent per annum.a)Rs. 400b)Rs. 500c)Rs. 600d)Rs. 800Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. Calculate the S.I. on the same sum for double the time at half the rate percent per annum.a)Rs. 400b)Rs. 500c)Rs. 600d)Rs. 800Correct answer is option 'B'. Can you explain this answer?.
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