51.
The method in which issue prices of material is computed by dividing total purchase cost of material in stock with total quantity in stock ________.

52.
Under which method the rate of wages are linked with the cost of living index?

53.
Under which plan efficiency is shared by employee and employer equally?

54.
Which of the following method of wage payment is most suitable where the speed of production is beyond the control of worker?

55.
Under which method of wage payment, wages are influenced by idle time?