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1. Mr. Tejas has a total investment of Rs 10,000 in 3 bank accounts, one paying 5% interest. another paying 8% interest, and the third paying 9% interest. The annual interest earned on the three investments last year was Rs 770. The investment at 9% was double the investment at 5%. How much was invested at each rate? [Use Gaussian Elimination Method]

1. Mr. Tejas has a total investment of Rs 10,000 in 3 bank accounts, one paying 5% interest. another paying 8% interest, and the third paying 9% interest. The annual interest earned on the three investments last year was Rs 770. The investment at 9% was double the investment at 5%. How much was invested at each rate? [Use Gaussian Elimination Method]

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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1. Mr. Tejas has a total investment of Rs 10,000 in 3 bank accounts, one paying 5% interest, another paying 8% interest, and the third paying 9% interest. The annual interest earned on the three investments last year was Rs 770. The investment at 9% was double the investment at 5%. How much was invested at each rate? [Use Gaussian Elimination Method]
Transcribed Image Text:1. Mr. Tejas has a total investment of Rs 10,000 in 3 bank accounts, one paying 5% interest, another paying 8% interest, and the third paying 9% interest. The annual interest earned on the three investments last year was Rs 770. The investment at 9% was double the investment at 5%. How much was invested at each rate? [Use Gaussian Elimination Method]
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