31.
The concept of economic order quantity is concerned with

34.
Mr. Ram has to buy 4000 units. His annual consumption is 4000 units, order cost is Rs. 80 and maintenance cost in a year is Rs. 4. Economic order quantity will be

37.
If the beginning balance in the raw materials inventory account for the month was Rs. 25,000, the ending balance was Rs. 22,000 and material used during the month was Rs. 1,30,000. What is the amount of materials purchased during the month?

39.
Assertion (A): A high operating ratio indicates a favourable position.
Reason (R): A high operating ratio leaves a high margin to meet non-operating expenses.

40.
In ratio analysis, 'time series analysis' refers to