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Question

If z+4 less than or equal to 3, then the maximum value of z+1 is


A

4

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B

10

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C

6

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D

0

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Solution

The correct option is C

6


The explanation for the correct option

It is given that z+4 less than or equal to 3.

Thus, z+43.

Now, z+1=z+4-3

z+1=z+4+-3

It is known that, a+ba+b.

Thus, z+1z+4+-3

z+13+3z+43z+16

Thus, the maximum value of z+1 is 6.

Hence, (C) is the correct option.


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