A.  3 : 4

B.  2 : 4

C.  4 : 2

D.  4 : 3

1
Correct Answer :
4 : 3
Explanation :

5% of A + 4% of B = 2 / 3 ( 6% of A + 8% of B )

=> ( 5 / 100 ) x A + ( 4 / 100 ) x B = 2 / 3 ( ( 6 / 100 ) x A + ( 8 / 100 ) x B )

=> ( ( 1 / 20 ) x A + ( 1 / 25 ) x B ) = ( 1 / 25 ) x A + ( 4 / 75) x B

=> A / B = 100 / 75

=> A / B = 4 / 3 = 4 : 3


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