Ethanol is produced from starch as a raw material by the activity of

Raw material of respiration is

Raw material of respiration is

The raw materials for light reaction are

Raw material of respiration is

The price of raw materials has gone up by 15% , labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be reduction in the usage of raw materials so as to keep the cost same