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Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 10000 at 6% interest, compounded semi-annually, both investments being for one year. Bimal invests his money at 7.5% simple interest for one year. If Amal and Bimal get the same amount of interest, then the amount, in Rupees, invested by Bimal is
Correct answer is '20920'. Can you explain this answer?
Verified Answer
Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 1000...
The amount with Amal at the end of 1 year = 12000*1.08+10000*1.03*1.03=23569
Interest received by Amal = 23569-22000=1569 Let the amount invested by Bimal = 100b Interest received by Bimal  = 100b*7.5*1/100=7.5b
It is given that the amount of interest received by both of them is the same 7.5b=1569 b=209.2
Amount invested by Bimal = 100b = 20920
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Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 1000...
Understanding Amal's Investments
Amal makes two investments:
- Investment 1: Rs 12000 at 8% interest, compounded annually.
- Investment 2: Rs 10000 at 6% interest, compounded semi-annually.
Calculating Amal's Total Interest
1. For the first investment (compounded annually):
- Amount = Principal * (1 + Rate) ^ Time
- Amount = 12000 * (1 + 0.08) ^ 1 = 12000 * 1.08 = Rs 12960
- Interest = Amount - Principal = 12960 - 12000 = Rs 960
2. For the second investment (compounded semi-annually):
- Effective rate = 6% / 2 = 3% per half year
- Amount = Principal * (1 + Rate) ^ (2 * Time)
- Amount = 10000 * (1 + 0.03) ^ 2 = 10000 * 1.0609 = Rs 10609
- Interest = Amount - Principal = 10609 - 10000 = Rs 609
3. Total Interest for Amal:
- Total Interest = Interest from Investment 1 + Interest from Investment 2
- Total Interest = 960 + 609 = Rs 1569
Understanding Bimal's Investment
Bimal invests his money at 7.5% simple interest for one year. The formula for simple interest is:
- Simple Interest = Principal * Rate * Time
Setting Up the Equation
Since Bimal's interest equals Amal's total interest:
- 1569 = Principal * 0.075 * 1
Calculating Bimal's Investment
- Principal = 1569 / 0.075 = Rs 20920
Conclusion
Thus, the amount invested by Bimal is Rs 20920, matching the interest earned by Amal.
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Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 1000...
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Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 10000 at 6% interest, compounded semi-annually, both investments being for one year. Bimal invests his money at 7.5% simple interest for one year. If Amal and Bimal get the same amount of interest, then the amount, in Rupees, invested by Bimal isCorrect answer is '20920'. Can you explain this answer?
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Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 10000 at 6% interest, compounded semi-annually, both investments being for one year. Bimal invests his money at 7.5% simple interest for one year. If Amal and Bimal get the same amount of interest, then the amount, in Rupees, invested by Bimal isCorrect answer is '20920'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 10000 at 6% interest, compounded semi-annually, both investments being for one year. Bimal invests his money at 7.5% simple interest for one year. If Amal and Bimal get the same amount of interest, then the amount, in Rupees, invested by Bimal isCorrect answer is '20920'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Amal invests Rs 12000 at 8% interest, compounded annually, and Rs 10000 at 6% interest, compounded semi-annually, both investments being for one year. Bimal invests his money at 7.5% simple interest for one year. If Amal and Bimal get the same amount of interest, then the amount, in Rupees, invested by Bimal isCorrect answer is '20920'. Can you explain this answer?.
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