Mr. Sohel can do a job in 8 days and his son can do it 24 days. How many days will it take them to complete the job if they worked together?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
1 (6 days)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Given,
Mr. Sohel can do the job in 8 days
∴ in 1 day Mr. Sohel can do = 1/8 part
and,
His son can do the job in 24 days
∴ in 1 day his son can do = 1/24 part
∴ in 1 day they worked together = (1/8 + 1/24) part
= (3 + 1)/24 part
= 4/24 part
= 1/6 part
Hence, worked together 1/6 part can do in 1 day
∴ They can complete the job in 6 days if they work together
