in a certain apartment building, there are one - bedroom and two - bedroom apartments. the rental prices of the apartment depend on a number of factors, but on average, two - bedroom apartments have higher rental prices than do one - bedroom apartments. let m be the average rental price for all apartments in the building. if m is $ 700 higher than the average rental price for all one - bedroom apartments, and if the average rental price for all two - bedroom apartments is $ 2,100 higher that m, then what percentage of apartments in the building are two - bedroom apartments?  Choose the correct choice from the following answers:	A) 25 %	B) 15 %	C) 20 %	D) 40 %	E) 45 %
<gadget id="calculator">700 * 100</gadget>
<output>70_000</output>

<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 + 100</gadget>
<output>2_100</output>

<gadget id="calculator">2_100 + 700</gadget>
<output>2_800</output>

<gadget id="calculator">70_000 / 2_800</gadget>
<output>25</output>

<result>A</result>
in a certain apartment building, there are one - bedroom and two - bedroom apartments. the rental prices of the apartment depend on a number of factors, but on average, two - bedroom apartments have higher rental prices than do one - bedroom apartments. let m be the average rental price for all apartments in the building. if m is $ 700 higher than the average rental price for all one - bedroom apartments, and if the average rental price for all two - bedroom apartments is $ 2,100 higher that m, then what percentage of apartments in the building are two - bedroom apartments?
divide(multiply(700, const_100), add(add(multiply(const_2, const_1000), const_100), 700))
ratio of 2 bedroom apartment : 1 bedroom apartment = 700 : 2100 - - - - - > 1 : 3 let total number of apartments be x no . of 2 bedroom apartment = ( 1 / 4 ) * x percentage of apartments in the building are two - bedroom apartments - - - - > ( 1 / 4 ) * 100 - - - > 25 % answer : a