Correct Answer: Option C
Let the third number be x.
Then, first number = 120% of x
= 120x/100 = 6x/5
Second number = 150% of x
= 150x/100 = 3x/2
So, Ratio of first two numbers = (6x/5 : 3x)
= 12x : 15x = 4 : 5.
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