Natarajan and Mr. Gopalan Are Partners in the Company Having Capitals in the Ratio 4 : 5 and the Profits Received by Them Are in the Ratio 5 :4. If Mr. Gopalan Invested Capital in the Company for 16 Months, How Long Was Mr. Natarajan’S Investment in the Company? - Mathematics and Statistics

Natarajan and Mr. Gopalan are partners in the company having capitals in the ratio 4 : 5 and the profits received by them are in the ratio 5 :4. If Mr. Gopalan invested capital in the company for 16 months, how long was Mr. Natarajan’s investment in the company?

Solution

Let x be the proportionality constant.

Since, capitals invested by Mr. Natarajan and Mr. Gopalan are in the ratio 4:5

∴ their capitals are Rs 4x and Rs 5x respectively

Let Natarajan’s period of investment in the company be y months

∴ Natarajan invested Rs 4x for y months and Gopalan invested Rs 5x for 16 months

Since, capitals and period of investment both are different.

∴ profit is distributed in the ratio of the product of the capitals and respective period.

i.e., in the ratio (4x xx y):(5x xx 16)

i.e., in the ratio 4xy : 80x

i.e., in the ratio y : 20

But, given profit is in the ratio 5:4.

:.y/20=5/4

:.y =5/4xx20

∴ y = 25

∴ Mr. Natarajan’s investment in the company was for 25 months.

Concept: Commission, Brokerage and Discount
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2014-2015 (March)

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