A.  2 : 5

B.  3 : 7

C.  5 : 3

D.  7 : 3

1
Correct Answer :
5 : 3
Explanation :

Let 40% of A = (2/3) B

Then, (40A/100) = (2B/3)

=> 2A/5 = 2B/3

=> A/B = [ (2/3) x (5/2) ] = 5/3

=> A : B = 5 : 3


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