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Question

In a business, A invests 600 rupees more than B. The capital of B remains invested for 712 months, while the capital of A remains invested for 2 more months. If the total profit be 620 rupees and B gets 140 rupees less than what A gets, then As capital is

A
2400 rupees
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B
2800 rupees
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C
3000 rupees
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D
3200 rupees
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Solution

The correct option is C 3000 rupees
Let Bs capital be x rupees.
Then, As capital =(600+x) rupees
A:B=((x+600)×192):(x×152)
=(19x+11400):15x

As share =(620×19x+1140034x+11400)
Bs share =(620×15x34x+11400)

620(19x+1140034x+1140015x34x+11400)=140
62(4x+11400)=14(34x+11400)
(476248)x=(6214)×11400
228x=48×11400
x=48×11400228=2400
Hence As capital =2400+600=3000

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