3men or 4 women can construct a wall in 62 days. How long will it take for 12 men and 15 women to do the same work?
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Answer:
8 Days
Step-by-step explanation:
3men or 4 women can construct a wall in 62 days. How long will it take for 12 men and 15 women to do the same work?
3 men can construct a wall in 62 days
1 man will construct a wall in 62 * 3 = 186 days
1 day work of a man = 1/186
1 day work of 12 men = 12/186 = 2/31
4 women can construct a wall in 62 days
4 woman will construct a wall in 62 * 4 = 248 days
1 day work of a woman = 1/248
1 day work of 15 women = 15/248
1 Day work of 12 Men & 15 Women = 2/31 + 15/248
= (1/248) ( 16 + 15)
= 31/248
= 1/8
1/8 work is done by 12 Men & 15 Women in 1 day
1 work will be done by 12 Men & 15 Women in = 1/(1/8) = 8 Days
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