1.

If A's salary is 50% more than B's, then by what % B's salary is less than A's salary?

A.  \[=P\left( 1+\frac{{{R}_{1}}}{100} \right)\times \left( 1+\frac{{{R}_{2}}}{100} \right).\]      
B.  \[=P{{\left( 1-\frac{R}{100} \right)}^{n}}.\]
C. 33      
D. 30
Answer» B.  \[=P{{\left( 1-\frac{R}{100} \right)}^{n}}.\]


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