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Question

If (2,2) lies on 4x+5y=k, the value of k is

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A

28

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B

18

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C

8

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D

10

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Solution

The correct option is B

18


Putting the value of x and y in the equation we get:
4(2)+5(2)=k
k=18

Thus, the value of k is 18.


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