\( X \) and \( Y \) can do a piece of work in 20 days and 12 days respectively. \( X \) started ...
Автор: PW Solutions
Загружено: 2022-11-17
Просмотров: 511
Описание:
\( X \) and \( Y \) can do a piece of work in 20 days and 12 days respectively. \( X \) started the work alone and then after 4 days \( Y \) joined him till the completion of the work. How long did the work last?
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