IBPS RRB Officer Scale 1 Model Paper 12

Arun completes{2}/3of a certain job in 6 days. Lakshya can complete{1}/3of the same job in 8 days andPulkit can complete{3}/2of the work in 12 days. All of them work together for 4 days and then Arun andPulkit quit. How long will it take for Lakshya to complete the remaining work alone?