900 is 4 1/2% of what?
900 = 4 1/2 % of what?Let the what be x, 4 1/2% = 9/2% = (9/2)/100 = 9/200900 = (9/200)x900 = 9x/2009x = 900200x = (900*200)/9 = 20000Therefore 900 is 4 1/2% of 20000