A warehouse had a square floor with are 10,000 sq.metres. A rectangular addition was built along
one entire side of the warehouse that increased the floor by one-half as much as the original floor. How many metres did the addition extend beyond the original building?  Choose the correct choice from the following.
A) 10  B) 20  C) 50  D) 200  E) 500
length=100,b=?   area of rectangle=l*b   original floor=10,000 sq.metres   increasing the original floor by half of the original floor=10000+1/2(10000)   =15000   so 15000-10000= 
<gadget id="calculator">15000-10000</gadget>
<output>5_000</output>
5000(area of rectangular portion)   l*b=5000   l=100 so 100*b=5000 -&gt;b=50   so extended part is of 50metres   ANSWER:50
<result>C</result>
A warehouse had a square floor with are 10,000 sq.metres. A rectangular addition was built along
one entire side of the warehouse that increased the floor by one-half as much as the original floor. How many metres did the addition extend beyond the original building?