A skilled worker in XYZ Ltd is paid a guaranteed wage rate of `30 per hour. The standard time per unit for a particular product is 4 hours. P, a machineman, has been paid wages under the Rowan...

A skilled worker in XYZ Ltd is paid a guaranteed wage rate of `30 per hour. The standard time per unit for a particular product is 4 hours. P, a machineman, has been paid wages under the Rowan Incentive Plan and he had earned an effective hourly rate of `37.50 on the manufacture of that particular product.

What could have been his total earnings and effective hourly rate, had he been put on Halsey Incentive Scheme (50 per cent)?