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  • INDIAN NAVY SAILORS Numerical Ability Study Material

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Applications of Derivatives
The rate of change of demand with respect to price is called ____________ .

a) Differentiation
b) Derivative
c) Limits
d) Integration



Answer
Correct Answer Is : Differentiation
Solution Is :
If the function f(x) is ______________ at x = c, then f`( c ) > 0.

a) None
b) Both 1 and 2
c) Decreasing
d) Increasing



Answer
Correct Answer Is : Increasing
Solution Is :
If the function f(x) is ______________ at x = c, then f`( c ) < 0.

a) Decreasing
b) Increasing
c) Both 1 and 2
d) None



Answer
Correct Answer Is : Decreasing
Solution Is :
Demand function D = f (P) , marginal demand Dm = ___________ .

a) DD / dP
b) DS / dP
c) DC / dP
d) All of these



Answer
Correct Answer Is : DD / dP
Solution Is :
Total cost function D = f (P) , marginal cost Cm = ___________ .

a) DD / dP
b) DS / dP
c) DC / dP
d) All of these



Answer
Correct Answer Is : DC / dP
Solution Is :
Supply function S = g (P) , marginal supply Sm = ___________ .

a) DD / dP
b) DS / dP
c) DC / dP
d) All of these



Answer
Correct Answer Is : DS / dP
Solution Is :
True or false: the price of elasticity of demand is referred as "Elasticity of demand".

a) TRUE
b) FALSE
c) Maybe
d) None of these



Answer
Correct Answer Is : TRUE
Solution Is :
The price of elasticity of demand is denoted by ?

a) ∊
b) η
c) E
d) E(D)



Answer
Correct Answer Is : η
Solution Is :
The elasticity of demand is given by η =

a) ((-P/D).(dD/Dp))
b) ((P/D).(dD/Dp))
c) ((P/D)/(dD/Dp))
d) ((-P/D)/(dD/Dp))



Answer
Correct Answer Is : ((-P/D).(dD/Dp))
Solution Is :
If η = 0, it means the demand D is ____________ .

a) Constant function of price
b) Relatively inelastic
c) Exactly proportional to the price
d) Relatively elastic



Answer
Correct Answer Is : Constant function of price
Solution Is :

Preparation for Exams

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