state gov UP Police Head Operator (Radio Cadre) Mock Test Quantitative Aptitude Time and Work Work Efficiency
Ram and Shyam can do a piece of work in 5 days, Shyam and Shiva can do the same piece of work in 10 days and Ram and Shiva can do the same piece of work in 15 days. Find the total number of days required to complete the work if all three of them are working together.
1
\(5\frac{5}{11}\) days
2
\(6\frac{5}{11}\) days
3
\(5\frac{6}{11}\) days
4
\(7\frac{5}{11}\) days