can you help?I need your answer.maths.
threeworkersofacompanybusinesstriptothesouth.theyfoundthattherewere13rainydayssinceth...
three workers of a company business trip to the south.they found that there were 13rainy days since the day they started off till the day arrived home,it rained either the whole morning or the whole afternoon.they also found that there were 11 days with sunny mornings while there while there were 12 days with sunny afternoons.so, how long were they on their business trip?
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13个雨天（半天），11个晴天上午，12个晴天下午。
（13+11+12）／2=18天
（13+11+12）／2=18天
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