A teasingly tricky maths challenge that claims to separate the real boffins from those who just claim to know the answers is sweeping Facebook.
一道号称能瞬间区分“真天才”和“自诩天才”的数学题席卷脸书。
Some three million people have already taken the tricky 'Intelligence Test' which carries a 'share if you understand' tag on it.
此题源于一则“智力测试”——标签为“看懂的人请分享”,约有300万人接受了测试。
Unsurprisingly, a shed-load of people have shared it, keen to show that they have an IQ of more than 150, apparently what you need to be able to understand it.
不出所料,很多人分享了它,迫切想要证明自己属于智商达150以上的人——150被认为是能看懂这则测试所需的最低智商。
However, one doubting brainbox has devised a 'test for a test' to see if those who are sharing the solution to the problem really do know their stuff.
不过,一位持怀疑态度的聪明人又设计了一道“测试中的测试”,想看看那些分享这则测试的人是不是真的看懂了。
YouTuber Presh Talwalker created something which needs the same logic from the test to be applied to another piece of maths to get a correct answer.
YouTube用户“Presh Talwalker”用上述测试题的相同逻辑拟了另一道题,欢迎大家给出正确答案。
Talwalker says of the new test: 'If you understand the rule you should be able to solve this problem.'
“Talwalker”表示:“如果你知道测试的解题规则,那么你就能答出这道题。”
问题:
Based on the intelligence test rule: x + y = (x - y) (x + y) and using the pattern below to help you, work out how ?+? = 123
基于上面那则智力测试的解题逻辑:“x + y = (x - y) (x + y)”,并利用下面这些算术模式,算一算“?+? = 123”。
6 + 4 = 210
9 + 2 = 711
8 + 5 = 313
5 + 2 = 37
7 + 6 = 113
9 + 8 = 117
10 + 6 = 416
15 + 3 = 1218
答案:
If you split the answer of 123 in two: you get two numbers 1 and 23
把123分成两部分,可得1和23。
To work back to what the numbers in question are, you need to work out two numbers where the second subtracted from the first makes 1 and also both added together makes 23.
想要倒推出原题中的两个数字,你需要保证数字一减去数字二等于1,而且它们相加等于23。
YouTuber Talwalker called the first number in question x and the second number y.
“Talwalker”已将“?+?”中的两个数字依次命名为x和y。
Using these and the numbers 1 and 23 split out of the answer delivers:
带入算式并附上1和23两个结果,可得:
x - y = 1
x + y = 23
This corresponds to:
于是得出:
12 – 11 = 1
12 + 11 = 23
Write them together and you get 123, as in the brainteaser question which is written 12 + 11 = 123
两个结果放在一起即123,按照原测试的规则写出来就是“12 + 11 = 123”。
运算过程:
x - y = 1
x + y = 23
We can add these two together, which would be written out like this (x-y)+(x+y)=24
将上面两个等式左右相加,可得“(x-y)+(x+y)=24”。
In this equation we have 2x and no y, so:
左边运算结果为2x,y已相互抵消,于是我们得出:
2x=24
That means that x is 12, so using the first formula:
所以x等于12,在利用之前的第一个等式:
12-y=1
That means that y is 11.
所以y等于11。
Write these numbers in the style of the brainteaser and you get 12+11=123
仿照测试中的写法,可得“12+11=123”。
Vocabulary
boffin:科学家;科技理论家
brainbox:绝顶聪明的人
英语四级顺利过关常考句型(1)
介绍全民都有受教育的权利
英语四级写作方法与技巧作文加分词汇
大学生的曲线就之路
专家重点推荐英语四级写作经典句型
针对问题开门见山的作文开篇句型
大学英语四级考试写作精讲作文之基本技能
英语四级顺利过关常考句型(3)
英语四级顺利过关常考句型(2)
历届四级作文真题范文
The Necessity of Examination
大学生的极生活方式消
大学英语四级写作的突出问题
英语四级作文万能句,英语作文万能替换句专题
运用复杂句型结构和高级词汇得高分
怎样看待大学校园里的奢侈消费
知识还能改变命运吗
最新大学英语四级作文预测及范文(九)
介绍用错误的观点或做法引入观点的句型
英语四级写作方法与技巧作文开头
双学士学位的现象和我的看法
怎样看待大学里的考试
On the Popularity of Internet
On College Students Doing Sales Promotion
介绍作文以事实开篇的万能句
介绍借助普遍的观点开始作文的句型
怎样看待大学生使用互联网
英语四级写作方法与技巧举例法
大学英语四级冲刺班的写作部分
学校教育品德应和能力并重
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |