A can do a piece of work in 10 days. While B alone can do it in 15 days. They work together for 5 days and the rest of the work is done by C in 2 days. If they get TK. 450 for the whole work, how much money C should get from the whole?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
1 (TK. 75)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
A's work of one day is 1/10
B's work of one day is 1/15
A and B's work of 5 days = 5 × (1/10 + 1/15) = 5 × {(3 + 2)/30}
= 5 × (1/6)
= 5/6
Remaining work = (1 - 5/6) = 1/6
The ratio of A, B, C's work = 5/10 : 5/15 : 1/6
= 1/2 : 1/3 : 1/6
= 3 : 2 : 1
∴ C should get = 450 × (1/6) = 75 Taka
