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Maths-

General

Easy

Question

In the table above, the ratio of y to x for each ordered pair is constant. What is the value of k ?

28
36
80
160

The correct answer is: 160

HINT :- Find the ratio and using the ratio find K.
Ratio of y : x at x = 1 and y = 4 is 4 : 1
As the ratio is constant at x = 40 and y = k we take $straight k over 40 space equals space 4 over 1 space not stretchy rightwards double arrow space straight k space equals space 160$ ,
∴ k = 160

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