If y is directly proportional to x and if y = 20 when x = 6, what is the value of y when x = 9 ?
(A) 10/3
(B) 40/3
(C) 23
(D) 27
(E) 30

Can someone explain this one for me?



Answer :

E - 30. From 6 to 9 is increase of 1.5times

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