गौरांग ने सोमवार को 412 घंटे, मंगलवार को 190 मिनट, बुधवार को सुबह 5:20 से 9:10 बजे तक, और शुक्रवार को 220 मिनट काम किया। यदि उसे ₹42 प्रति घंटा का भुगतान किया जाता है, तो उसने कुल कितना कमाया?

If P and Q together can complete a piece of work in 15 days and P alone can do it in 45 days, in how many days can Q alone complete that work?

A can lay a railway track between two stations in 16 days and B can do the same job in 12 days. With the help of C, they finished the job in 4 days. In how many days can C alone do the job?