Traditional Culture Encyclopedia - Photography major - Xiaolong went downstairs by the escalator in the shopping mall. He walked down at the speed of one step at a time. As a result, he took 30 steps and went downstairs. Suddenly, he found that he lost hi
Xiaolong went downstairs by the escalator in the shopping mall. He walked down at the speed of one step at a time. As a result, he took 30 steps and went downstairs. Suddenly, he found that he lost hi
Xiaolong went downstairs by the escalator in the shopping mall. He walked down at the speed of one step at a time. As a result, he took 30 steps and went downstairs. Suddenly, he found that he lost his bag in a hurry.
When going down, if people take one step, the elevator goes down to the X floor, and there are:
30+30x=90? 903x,
The solution is x= 1,
So the number of elevators is 30+30=60 (floors).
So the answer is: 60.
- Previous article:Recommend a SLR monopod and slide rail.
- Next article:Aike Gemini photography
- Related articles
- Dreaming of the omen of mosquito net falling.
- Irma Whip's credit.
- How to identify whether your photos look good?
- Message from National Day Photo Exhibition
- Primary School Composition 1 Photo of Zhang Zhengui (photo of the whole class)
- Why do still-life women with memories take pictures?
- Interpretation of the Photographic Works of Beauty of Hometown
- What mobile phone is cost-effective? Ask for recommendation.
- What are the common uncivilized behaviors in tourism?
- Is there any skill in portrait photography?