1.

The product of two number remains constant; if one of them increases by 40%, by what % does the second get diminished?

A.  \[=\frac{P}{{{\left( 1-\frac{R}{100} \right)}^{n}}}\]         
B.  \[\frac{a}{b}=K\]  
C.  \[{{a}_{1}}\]     
D. 60%   
Answer» B.  \[\frac{a}{b}=K\]  


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