A can do a piece of work in 24 days. When he had worked for 6 days, B joined him. If complete work was finished in 18 days, B can alone finish that work in-
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (48 days)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
A's 1 day's work = 1/24 part
A's 18 day's work = 18/24 part
= 3/4 part
Remaining work = 1 - 3/4 = 1/4 part
1/4 part work done by B in = (18 - 6) = 12 days
∴ 1 part work done by B in = (12 × 4) = 48 days
