Correct Answer: Option D
5% of A + 4% of B =2/3(6% of A + 8% of B)
=> 5A/100 + 4B/100 = 2/3 (6A/100 + 8B/100)
=> 1A/20 + 1B/25 = 1A/25 + 4B/75
=> (1/20 – 1/25)A = (4/75 – 1/25)B
=> 1A/100 = 1B/75
A/B = 100/75=4/3
So, Required ratio = 4:3
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