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 Let f(x)=min.{4x+1,x+2,2x+4}. Then the maximum  value of f(x) is 

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a
13
b
103
c
23
d
83

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detailed solution

Correct option is D

f x= boundary of the shaded region   fx  maximum value =83     solve the equations y=x+2 and y=-2x+4


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