5 women and 2 men can complete a work in 4 days, while 6 women and 3 men can complete the same work in 3 days. How many days will one woman and one man working together take to complete the same work?

5 women and 2 men can complete a work in 4 days, while 6 women and 3 men can complete the same work in 3 days. How many days will one woman and one man working together take to complete the same work?

5 महिलाएं और 2 पुरुष किसी कार्य को 4 दिनों में पूरा कर सकते हैं, जबकि 6 महिलाएं और 3 पुरुष उसी कार्य को 3 दिनों में पूरा कर सकते हैं। एक महिला और एक पुरुष मिलकर उस कार्य को कितने दिनों में पूरा करेंगे?


Answer :


5 women + 2 men complete the work in 4 days.

So, their 1 day work = 1/4

6 women + 3 men complete the same work in 3 days.

So, their 1 day work = 1/3

अब मान लेते हैं:

1 woman = W

1 man = M

Then,

5W + 2M = 1/4 …(1)

6W + 3M = 1/3 …(2)

अब equation (2) को 2 से और equation (1) को 3 से multiply करते हैं:

12W + 6M = 2/3

15W + 6M = 3/4

अब subtract करें:

(15W + 6M) − (12W + 6M) = 3/4 − 2/3

3W = (9 − 8)/12

3W = 1/12

So,

W = 1/36

अब equation (1) में रखें:

5 × (1/36) + 2M = 1/4

5/36 + 2M = 1/4

2M = 1/4 − 5/36

2M = 9/36 − 5/36

2M = 4/36 = 1/9

So,

M = 1/18

अब 1 woman + 1 man की 1 day work:

W + M = 1/36 + 1/18

= 1/36 + 2/36

= 3/36 = 1/12

So, total work completed in 12 days.

Final Answer: 12 days


Video Solution : https://youtu.be/sR1GtWkZnIg


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