When Marginal cost is at lowest, Marginal product will

Select the option that is related to the third term in the same way as the second term is related to the first term.

PAMPER: OCRQDO:: HEALTH:?

74 : 56   ::   95 :   ?

Some equations are solved based on a certain system. On the same basis find out the correct answer for the unsolved equation.  

Given set:  [20, 82, 31]

If PET = 16520 and PETER = 16520518, then PREHEAT =

Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.

Select the related word/letters/number from the given alternatives.

AC : ZX :: GJ : (?)

GTSN : 7201914 :: UNEP : ?

Burma : Kyat:: Israel: ?