Question

a) What is the LENGTH (in km) of the line needed for all the people on earth to stand in that line? b) What is the SIDE (in km) of the SQUARE needed for all the people on the earth to stand within the AREA of that SQUARE?

Answer 1

Sofie © Length (in km) = ?? To get the length of line we require two things 0 Total number of persons / people on earth = x (let) ② Length covered by one person (in meters/person) = y (let) Now length required = xy meter or | Length = xy x103 km ® Side I in km) = ?? Similarly, to get get the side of the side of square we rea square we require two things 0 Total number of persons on earth = x (let) © Area acquired by one person ( meter person) = y (let) so, Total Area acquired on earth = xy mi a =ay ( let a be the side of required/ Total square) a = Vocy m side of square = Vzy xio3 km) © side (in km) = ?? Let side of Cube = b Similarly, to get the side of cube we require two things 0 Total number of persons on earth = x (let) ② volume acquired by one person (m²/person) =y (let) Bo, Total volume acquired on earth = xy m3 b = (x4)% m | side of cube = (dy) 3 x 103 km given, then put the values in above get the required answer If values you will equations