Task 1282

The task

Using the bar graph, what is the positive difference between the number of students at the school with the largest enrollment and the number of students at the school with the smallest enrollment? [asy] size(250); defaultpen(fontsize(9)); fill((0,0)--(40,0)--(40,20)--(0,20)--cycle,lightgray); draw((0,20)--(0,0)--(40,0)); draw((-0.5,2)--(40,2)); draw((-0.5,4)--(40,4)); draw((-0.5,6)--(40,6)); draw((-0.5,8)--(40,8)); draw((-0.5,10)--(40,10)); draw((-0.5,12)--(40,12)); draw((-0.5,14)--(40,14)); draw((-0.5,16)--(40,16)); draw((-0.5,18)--(40,18)); draw((-0.5,20)--(40,20)); filldraw((2.5,0)--(2.5,12.5)--(7.5,12.5)--(7.5,0)--cycle,lightblue); draw((10,0)--(10,-0.5)); draw((20,0)--(20,-0.5)); draw((30,0)--(30,-0.5)); draw((40,0)--(40,-0.5)); filldraw((12.5,0)--(12.5,14.3)--(17.5,14.3)--(17.5,0)--cycle,lightblue); filldraw((22.5,0)--(22.5,19)--(27.5,19)--(27.5,0)--cycle,lightblue); filldraw((32.5,0)--(32.5,17.2)--(37.5,17.2)--(37.5,0)--cycle,lightblue); label("0",(-0.5,0),W); label("200",(-0.5,2),W); label("400",(-0.5,4),W); label("600",(-0.5,6),W); label("800",(-0.5,8),W); label("1000",(-0.5,10),W); label("1200",(-0.5,12),W); label("1400",(-0.5,14),W); label("1600",(-0.5,16),W); label("1800",(-0.5,18),W); label("2000",(-0.5,20),W); label("Varsity",(5,-2)); label("Northwest",(15,-2)); label("Central",(25,-2)); label("Greenbriar",(35,-2)); label("School",(20,-5), fontsize(11)); label(rotate(90)*"Number of Students",(-7,10), fontsize(11)); label("Total Enrollment",(20,24), fontsize(12)); label("1250",(5,12.5),S); label("1430",(15,14.3),S); label("1900",(25,19),S); label("1720",(35,17.2),S); [/asy]