engineering recuitment NPCIL Plant Operator Mock Test Quantitative Aptitude Time and Work Work Efficiency
Working together A, B and C can complete a piece of work in 24 days. After working together for 4 days. C left the work. A and B completed the remaining work in 30 days. The number of days taken by C alone to complete the same work is:
1
60
2
54
3
72
4
90