calculate the earnings of the worker clearly stating your assumptions for the treatm 618394

A worker whose day wages are Rs. 2.50 per hour received a production bonus under the Rowan scheme. He carried out the following work in a 48-hour week:

Job 1 – 1,500 items at 4 hours per 1,000

Job 2 – 1,800 items at 3 hours per 1,000

Job 3 – 9,000 items at 6 hours per 1,000

Job 4 – 1,500 items for which no “standard time” was fixed and it was arranged that the worker would be paid a bonus of 25%. Actual time on the job was 4 hours. Job 5 – 2,000 items at 8 hours per 1,000. Each item was estimated to be half-finished.

Job 2 was carried out on a machine running at 90% efficiency and an extra allowance of 1/9^thof the actual time was given to compensate the worker. Four hours were lost due to power-cut. Calculate the earnings of the worker, clearly stating your assumptions for the treatment given by you for the hours lost due to power-cut.