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CBSE Class 8 Answered

  what is the property of a person whose income is Rs 430, when he has two-thirds of it invested at 4 percent, one-fourth at 3 percent, and the remainder at 2 percent ?
Asked by susanta.rkl | 04 Apr, 2018, 09:22: PM
answered-by-expert Expert Answer
begin mathsize 16px style Income space of space straight a space Person space is space Rs. space 430. He space invested space two minus third space of space it space with space 4 percent sign space space interest. Therefore comma space space straight P subscript 1 space end subscript equals space 430 space cross times 2 over 3 cross times space 4 over 100 space equals space Rs. space 11.47 He space invested space one minus fourth space of space income comma space with space 3 percent sign space space interest. Therefore comma space space straight P subscript 2 space end subscript equals space 430 space cross times 1 fourth cross times space 3 over 100 space equals space Rs. space 3.225 He space invested space Remainder comma space with space 2 percent sign space space interest. Remainder space equals space 1 space minus space open parentheses 2 over 3 space plus space 1 fourth close parentheses space equals space 1 minus space 11 over 12 space equals 1 over 12 straight P subscript 3 space equals space 430 space cross times space 1 over 12 space cross times space 2 over 100 space equals space Rs. space 0.717 Therefore space Total space Profit space space straight P space equals space straight P subscript 1 space end subscript space plus space space straight P subscript 2 space end subscript space plus space straight P subscript 3 space equals space Rs. space 11.47 space plus space space Rs. space 3.225 space plus space Rs. space 0.717 space equals space Rs. space 15.412 Therefore space the space Property space of space straight a space person space is space 430 space plus space 15.412 space equals space Rs. space 445.412 end style
Answered by Yasmeen Khan | 05 Apr, 2018, 10:37: AM

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