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A ने रुपये 42000 निवेश करके एक व्यापार शुरू किया । उसके कुछ महीने बाद B रुपये 49000 निवेश करके व्यापार में शामिल हो गया । यदि बर्ष के अंत में लाभ के हिस्से में से A को रुपये 9000 तथा B को रुपये 7000 प्राप्त हुआ हो, तो B कितने महीने बाद व्यापार में शामिल हुआ ?
A. 1 months
B. 4 months
C. 2 months
D. 3 months

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Best answer
Correct Answer - B
Capital invested by A
(A द्वारा निवेशित राशि ) =रुपये 42,000
Capital invested by B ( द्वारा निवेशित राशि ) =रुपये 49,000
Ratio of profits of A and `B = 9000`
`:7000 = 9:7`
We know, `(C_(1) xx T_(1))/(C_(2)xxT_(2)) = (P_(1))/(P_(2))`
`(42,000 xx 12)/(49,000 xx T_(2)) = (9)/(7)`.
`T_(2) =8` months
It means B invested his capital for 8 months. It means he joined business after `(12 -8=4)` months. (अतः B ने चार महीने बाद व्यसाय में निवेश किया )

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