<prompt> Mchoro unaonyesha maili zilizosafirishwa na waendesha baiskeli Alberto na Bjorn. Baada ya saa nne Alberto ameendesha baiskeli maili ngapi zaidi ya Bjorn? asy AMC8 1999 4 Tatizo kuchora0,0--5,0--5,3.75--0,3.75--mzunguko;kwaint x0; x 5; x kwa y0; y 3.75; y0.75nukta x, y;chora0,0--4,3;chora0,0--4,2.25;lebozungusha30Bjorn, 2.6,1;lebozungusha37.5Alberto, 2.5,2.2;lebomizani0.75zungusha90MAILI, -1, 2;lebokiwango 0.75SAA, 2.5, -1;lebomizani0.8575, 0, 3.75, W;lebomizani0.8560, 0, 3, W;lebomizani0.8545, 0, 2.25, W;lebomizani0.8530, 0, 1.5, W;lebomizani0.8515, 0, 0.75, W;lebomizani0.861, 1, 0, S;lebomizani0.862, 2, 0, S;lebomizani0.863, 3, 0, S;lebomizani0.864, 4, 0, S;lebomizani0.865, 5, 0, S;asy  <response>: Saa nne baada ya kuanza, Alberto amekwenda kama maili 60 na Bjorn amekwenda kama maili 45. Kwa hivyo, Alberto ameendesha baiskeli takriban maili 15 zaidi. 