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Question

Q. Megha can do a piece of work in 12 days. If Megha and Sneha completed the work together and were paid Rs. 54 and Rs. 81 respectively. How many days must they have taken to complete the work together?

Q. मेघा 12 दिनों में एक काम को कर सकती है। यदि मेघा और स्नेहा ने मिलकर काम पूरा किया और उन्हें क्रमशः 54 रूपए और 81 रूपए मिले, तो एक साथ काम पूरा करने में उन्हें कितने दिन लगे होंगे?

A

4 days
4 दिन
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B

4.8 days
4.8 दिन
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C

6 days
6 दिन
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D

7.5 days
7.5 दिन
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Solution

The correct option is B
4.8 days
4.8 दिन
Since the ratio of money given to Megha and Sneha is 2:3, their work done would also be in the same ratio. Thus, their time ratio would be 3:2.
Thus, If Megha takes 12 days, Sneha would take 8 days and the total number of days required would be given by the equation:
(112+18)×x=1 Solving the same, x=245=4.8 days.

चूंकि मेघा और स्नेहा को दिए गए पैसे का अनुपात 2: 3 है, इसलिए उनका काम भी उसी अनुपात में होगा। इस प्रकार, उनका समय अनुपात 3: 2 होगा।
इस प्रकार, यदि मेघा को 12 दिन लगते हैं, तो स्नेहा को 8 दिन लगेंगे और आवश्यक कुल दिन की गणना निम्न समीकरण द्वारा की जाएगी:
(112+18)×x=1, हल करने पर x=245=4.8 दिन।

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