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  • INDIAN NAVY SAILORS Numerical Ability Study Material

Digitization help student to explore and study their academic courses online, as this gives them flexibility and scheduling their learning at their convenience. Kidsfront has prepared unique course material of Numerical Ability Applications of Derivatives for INDIAN NAVY SAILORS student. This free online Numerical Ability study material for INDIAN NAVY SAILORS will help students in learning and doing practice on Applications of Derivatives topic of INDIAN NAVY SAILORS Numerical Ability. The study material on Applications of Derivatives, help INDIAN NAVY SAILORS Numerical Ability students to learn every aspect of Applications of Derivatives and prepare themselves for exams by doing online test exercise for Applications of Derivatives, as their study progresses in class. Kidsfront provide unique pattern of learning Numerical Ability with free online comprehensive study material and loads of INDIAN NAVY SAILORS Numerical Ability Applications of Derivatives exercise prepared by the highly professionals team. Students can understand Applications of Derivatives concept easily and consolidate their learning by doing practice test on Applications of Derivatives regularly till they excel in Numerical Ability Applications of Derivatives.


Applications of Derivatives
If η > 1, 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 : Relatively elastic
Solution Is :
If η = 1, 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 : Exactly proportional to the price
Solution Is :
If 0 < η < 1, 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 : Relatively inelastic
Solution Is :
Find the value of x for which the function f(x) = x 3 - 6x 2 -15x + 1 is increasing.

a) X ∊ (5 , ∞)
b) X ∊ (- ∞, -1)
c) Both 1 and 2
d) None of these



Answer
Correct Answer Is : Both 1 and 2
Solution Is :
Find the value of x for which the function f(x) = 8x + (2/x) is decreasing.

a) X ∊ ((-1/2),(1/2)) - {0}
b) X ∊ ((-2),(1/2)) - {0}
c) Both 1 and 2
d) None of these



Answer
Correct Answer Is : X ∊ ((-1/2),(1/2)) - {0}
Solution Is :
True or false:The rate of change of the area of a circle with respect to its radius r at r = 6 cm is 8π.

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



Answer
Correct Answer Is : FALSE
Solution Is :
If the function f(x) is increasing at x = c, then _________ .

a) F`( c ) > 0.
b) F`( c ) < 0.
c) F`( c ) = 0.
d) F`( c ) ≠ 0.



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

a) F`( c ) > 0.
b) F`( c ) < 0.
c) F`( c ) = 0.
d) F`( c ) ≠ 0.



Answer
Correct Answer Is : F`( c ) < 0.
Solution Is :
Demand function x, for s certain commodity is given as x = 200 - 4p, where p is the unit price. Find elasticity of demand as a function of p.

a) η = p/50
b) η = p/(50 + p)
c) η = p/(50 - p)
d) η = p/(p - 50)



Answer
Correct Answer Is : η = p/(50 - p)
Solution Is :
An edge of a variable cube is increasing at the rate of 3 cm/s. How fast is the volume of the cube increasing when the edge is 10 cm long?

a) 900cm^ 3 / s
b) 800cm^ 3 / s
c) 700cm^ 3 / s
d) 600cm^ 3 / s



Answer
Correct Answer Is : 900cm^ 3 / s
Solution Is :
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