a flagstaff 17.5 m high casts a shadow of length 40.25 m. the height of the building, which casts a shadow of length 28.75 m under similar conditions will be:
Choose the correct choice from the following answers:
A) 10 m  B) 12.5 m  C) 17.5 m  D) 21.25 m  E) none
<gadget id="calculator">17.5 / 40.25</gadget>
<output>0.434783</output>

<gadget id="calculator">28.75 * 0.434783</gadget>
<output>12.500011</output>

<result>B</result>
a flagstaff 17.5 m high casts a shadow of length 40.25 m. the height of the building, which casts a shadow of length 28.75 m under similar conditions will be:
multiply(28.75, divide(17.5, 40.25))
"let height of the building be x meters 40.25 : 28.75 : : 17.5 < = > 40.25 x x = 28.75 x 17.5 x = 28.75 x 17.5 / 40.25 x = 12.5 answer : option b"