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In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?
- a)1 year
- b)5 years
- c)4 years
- d)2 years
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a...
When we calculate compound interest, we use this formula:
Amount = Principal × (1 + Rate/100)n
- Principal (P) = the money we start with
- Rate (R) = the interest rate per year
- n = the number of years (time)
- Amount (A) = the money we get after adding interest
In the question:
Principal = Rs. 800, Amount = Rs. 882, Rate = 5% per year
Principal = Rs. 800, Amount = Rs. 882, Rate = 5% per year
So,
882 = 800 × (1 + 5/100)n
= 800 × (1.05)n
Now divide both sides by 800:
882 ÷ 800 = (1.05)n
1.1025 = (1.05)n
Let’s check powers of 1.05:
- For 1 year → (1.05)1 = 1.05 (too small)
- For 2 years → (1.05)2 = 1.1025 (correct)
So, n = 2 years.
The money will become Rs. 882 in 2 years.
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In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer?.
In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In what time will a sum of Rs. 800 at 5% p.a. C.I. amount to Rs. 882?a)1 yearb)5 yearsc)4 yearsd)2 yearsCorrect answer is option 'D'. Can you explain this answer?.
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