If 80 of A 20 of B and B 5 1 of A then the value of x is ........

Quantitative Aptitiude (CLAT) Percentage

If 80% of A = 20% of B and B = 5.1% of A. then the value of x is:

Tthis question is wrong appeared on CLAT-2014. . .X is missing in problem equation.
But, according to answer key option 2 is the correct answer.

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