state gov MP Excise Constable Mock Test Series 2025 Quantitative Aptitude Time and Work Work Efficiency
A girl may complete a task in 10 days, whereas it takes her mother 25 days and her sister 20 days. How long will it take them if they work together to do the task?
1
5.3 days
2
2.5 days
3
3 days
4
4 days