Last and final part of Solved Examples on Time and Work. Questions discussed in this video Among 4 persons A, B, C and D, A takes twice as much time as B to complete a job; B takes twice as much time as C to complete the job; and C takes twice as much time as D to complete the job. A group of three of there four men can complete the work in 11 days while another group of three men can do the job in 7 days. The group that takes 11 day to complete the job constitute of ..... a) A, B and C b) A, B and D c) B, C and D d) None of the above X, Y and Z can do a certain work independently in 72, 108 and 144 days respectively. They started the job together and X left 16 days before the completion of the work while Y left 24 days before the completion of the work. The number of days for which Z worked is .... a) 12 days b) 24 days c) 36 days d) 48 days A single petrol tank supplies petrol to a city. The petrol tank is fed by a pipeline that supplies petrol at a uniform rate. When the tank is full and if 20,000 liters of petrol is consumed daily, the supply fails in 45 days. If 16,000 liters of petrol is used daily, supply fails in 30 days. How much petrol can be consumed everyday without the supply fail? a) 8000 b) 7000 c) 4000 d) 12000

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