Three workers A, B and C work in a factory. The following particulars apply to them:

Normal rate per hour = Re. 0.90.

Piece rate = Re. 0.60 per unit.

Standard = 4 units per hour.

In a 40-hour week, the production of workers is as follows:

A: 100 units B: 160 units C: 240 units You are required to calculate earning of workers as follows:

(i) Taylor’s differential piece-rate system

(ii) Merrick’s differential piece-rate system.