state gov Rajasthan Gram Vikas Adhikari (VDO) Mock Test 2021 Quantitative Aptitude Time and Work Work Efficiency
If A, B and C can complete a work in 20 days, 30 days and 60 days respectively, then in how many days together they can complete the work?
1
8 days
2
10 days
3
12 days
4
15 days