On the basis of following information, calculate the earnings of worker X and Y on (i) Straight piece basis, and (ii) Taylor's differential piece rate system. Standard production - 8 units per hour Normal time rate. - $4 per hour Differentials to be applied: (a) 80% of piece rate below standard (b) 120% of piece rate at or above standard In a 9 hour day, X produced 54 units and Y produced 75 units