defence exam Indian Navy Fireman/Fire Engine Driver Mock Test 2024 Quantitative Aptitude Time and Work
'P' and 'Q' can do a piece of work in 18 days, 'Q' and 'R' in 24 days, 'P' and 'R' in 36 days. In what time can they all do it working together?
1
13 days
2
10 days
3
16 days
4
12 days