A man has Rs.10,000. He lend a part of it at 15% simple interest and the remaining at 10% simple interest. The total interest he received after 5 years amounted to Rs.6,500. The difference between the parts of the amounts he lent is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e Rs.2,000.
| Understanding | Application |
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We can solve this equation by using alligation. Interest after 5 years On amount which is lend on 10% S.I = 5 x 10 = 50% On amount which is lend on 15% S.I = 5 x 15 = 75% Total interest received after 5 years = 6500 rupees = 6500/10000 = 65% |
Let the amount is 2x and 3x . Total amout = 2x + 3x = 5x 5x = 10000 x =2000 Difference between amount = 3x - 2x = x x = 2000 |
