[Archive!] Pure mathematics, physics, chemistry, etc.: brain-training problems not related to trade in any way - page 181
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Mathemat, вирусы на форуме размножаем? Весело у вас как :)
alsu, боюсь, Кощей Бессмертный не доползет...
--------
Присоединюсь-ка, только чайку налью. Итак:
Трейдеры пьют чай из самовара вместимостью 60 стаканов. Первый трейдер наливая стакан проверил, что стакан наполнился за 20 сек. Он тут же спросил остальных: за сколько минут опорожнится самовар при условии беспрерывного наполнения стаканов?
in 20 minutes :)
за 20 минут :)
ah, hell, Mathemat already replied, yes, the first glass has already been poured. so in 19 minutes and 40 seconds.
Tatarstan, Republican Olympiad in Physics 1983, 8th grade, 2nd round
Given:
1. Weights
2. Hand spring scales
3. Clock
4. A sheet of squared paper
5. Pencil
Find:
1. Density of the kettlebell
The clock is kind of cryptic in this problem. It is possible without a clock, if an 8th grader can calculate the volume of a "truncated" sphere and the volume of a pen, considering it as a piece of toroid.
The clock is for timing the problem.
Stopwatch goes like a clock, the handle of the kettlebell is made of wire
Timing 4 hours, time constantly announced, there were about 200 participants, the task was completed by about 60 people
Татарстан, республиканская олимпиада по физике 1983, 8 класс, 2-й тур
Даны:
1. Гиря
2. Ручные пружинные весы
3. Часы
4. Лист бумаги в клеточку
5. Карандаш
Найти:
1. Плотность гири
Can I ask you to describe the shape of the kettlebell?
And also what is timing and what is -time constantly updated ?
The clock, the clock here needs sawing, it's golden...
The weight is a piece of metal in a black plastic shell, with a wire handle, weighing approximately 100 grams.
There are 4 hours for the assignment, the teachers announce the remaining time
Hello, everybody, by the way.
Татарстан, республиканская олимпиада по физике 1983, 8 класс, 2-й тур
Даны:
1. Гиря
2. Ручные пружинные весы
3. Часы
4. Лист бумаги в клеточку
5. Карандаш
Найти:
1. Плотность гири
it couldn't be simpler just to find the volume of the weight, using a sheet of paper
Часы, часы тут надо пилить, они золотые...
I think so too.
Otherwise, if the sheet is from a school notebook, the solution time is one minute.