13.
Most chemical plants use an initial working capital amounting to 10-20% of the total capital investment. But this percentage may increase to __________ percent in case of seasonal products manufacturing plant.

14.
According to six-tenths-factor rule, if the cost of a given unit at one capacity is known, then the cost of similar unit with times the capacity of the first unit is approximately equal to __________ times the cost of the initial unit.

15.
An investment of Rs. 1000 is carrying an interest of 10% compounded quarterly. The value of the investment at the end of five years will be

19.
If 'S' is the amount available after 'n' interest periods for an initial principal 'P' with the discrete compound interest rate 'i', the present worth is given by

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