my bad, exactly 1 second. like probably exactly one second, I went through the timer using the , and . buttons. we get the problem 60 frames after they do. since they said ten seconds at 20:39, the problem must have appeared at 20:04, but we got it 60 frames after that so a second later
26:36 The data of the problem were wrong. The official answer is 54, so L=36 and W=18. Hence the area of the black region is (36-4)*(18-4)=448...not 416.
No, the data were right, the area of the black region is 36*18=648, the area of both regions together is (36+4)*(18+4)=40*22=880, the area of the white region is 880-648=132 and 132 is exactly 416 less than 648, as described.
i don’t understand why i’m watching these. i sucked at math in school. went to summer school just to graduate high school and college was a little better i guess but for some reason I CANT STOP WATCHING THESE COMPETITIONS
(V_k = velocity. V_1 being the velocity of the first 6km. V_2 being the last 6km.) We have v_2 = v_1 + 2. So, (V_1 + V_1 + 2)/2 = 12/1.75 = 12/(7/4) = 48/7 ---> V_1 = 41/7. Which is very close to 6 but not quite.
its asking for greatest possible value of the expression, not the value of n resulting in the greatest possible value of the expression. n = 2 gives you 3. 3 is the greatest possible value.
