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Engineering Mathematics Practice Test 65

# Exponential Growth Quiz Questions and Answers PDF - 65

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## Exponential Growth Questions and Answers : Quiz 65

MCQ 321: If A' growth rate of number of bacteria at any time t is proportional to the number present at any time t and doubles in 1 week then bacteria after two week is

A) 4A(t)
B) 0.099A(t)
C) 16A(t)
D) 24A(t)

MCQ 322: A tank contains 400 gal of brine in which 100lb salt is disolved where fresh water runs into the tank at rate of 2 gal/min, if C is salt concenteration, A is amount of salt and V is volume of tank than

A) C=AV
B) C=V/A
C) C=A/V
D) C=A+V

MCQ 323: System in which output characteristics depend explicitly upon time is known as

A) Time-invariant system
B) Time-variant system
C) Non-linear system
D) Constant system

MCQ 324: In ∂x(uv), where u and v are variables, is equals to

A) u∂v∂x+v∂u∂x
B) u∂u∂x+v∂v∂x
C) uv ∂x+∂u∂x(uv)
D) uv∂x

MCQ 325: A function y=h(x) of a given ODE on some open interval a < x < b if h(x) is defined and differentiable throughout the interval and is such that equation become an identity is called

A) separation
B) scalar
C) solution
D) summation

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