英语翻译Suppose A spends 3 days finishing half of a job; B spends 4 days doing one third of it.Now if A and B work together,how many days will it take for them to finish the job?的翻译.
问题描述：
英语翻译
Suppose A spends 3 days finishing half of a job; B spends 4 days doing one third of it.Now if A and B work together,how many days will it take for them to finish the job?的翻译.
答