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Question: A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days . In what time can the son do it alone ?
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Question: A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days . In what time can the son do it alone ?
Question 1: A man can do a piece of work in 5 days. But with the help of his son, he can do it in 3 days . In what time can the son do it alone ?
View topic: বিবিধ সমস্যা (Miscellaneous Problem)
6.5 days
7 days
7.5 days
8 days
Source: Bangladesh Bank - Assistant Director - 2014
Answer
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Answer: 7.5 days
Explanation:
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