Interesting and Humour - page 252
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10,5+1,05+1,05 =12,6
(210/6) - (10.5+1.05+1.05) = 35 - 12.6 = 22.4 / 2.5 = 8 min 57.3 sec
Mine is simpler and seems more correct:
X = (210-105)*10/60 = 17.5 (km)
Y = 105+45 = 150 (km/h)
t (min) = X/Y * 60 = 7 (min)
Mine is simpler and seems more correct:
X = (210-105)*10/60 = 17.5 (km)
Y = 105+45 = 150 (km/h)
t (min) = X/Y * 60 = 7 (min)
I don't think the answer is important -
the mere fact that the BMW's 210 kilometres per hour is great.
But it's more of a challenge to get the idea
the idea that the pooch is also somewhere in that range.)
Nonsense - just a spammy advert for children
who don't know that the Russian car industry is 500 years
from the BMW by 500 years.
It's not like the traffic cop took 210. Not enough acceleration time,
It's not like the traffic cop took 210 from the spot. Not enough acceleration time, anyway.
2 minutes is a redundancy in the problem. And correct the answer, Alexei.
What's the difference. The main thing is that he managed to accelerate before overtaking Oka. The whole solution to the problem is from the moment he overtook.
It's amazing where the ability to solve school problems goes with age. At school you would have solved it for sure - and you wouldn't even have thought about whether he had time to speed it up or not.
I guess "experience is the son of hard errors" gradually deprives us of the ability to think as clearly and distinctly as at school.