state gov RSMSSB Junior Assistant & Lipik Grade (LDC) Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
Ian can do a piece of work by himself in 15 hours while Manas can do the same work alone in 21 hours. Starting with Ian they work for an hour each alternately till the work is completed. Only during the last slot one can work for less than an hour if work gets over. How long will it take them to complete the work?
1
17 hrs 24 mins
2
17 hrs 30 mins
3
17 hrs 48 mins
4
17 hrs 50 mins
5
Question Not Attempted