Last week, we posted a genius test here and called it ‘The Money Heist Genius Test.” The test – which is made up of three questions – is the world’s shortest IQ test. It was developed at MIT in 2005 and so far, only 17% of the people who take it pass in all of the questions. Of the people who responded to the test on our last week’s post, one person was the only one to get all three questions correct.
Meet Aaron Rono, a 2nd year student of Geomatic Engineering at Kimathi. He is an enthusiast of technology and its evolution and considers it his duty to spread the gospel of technology and what it can do to the world. In line with that, he is also a software developer.
Here are the answers that he gave for each of the questions:
1. Chips and a smokie cost sh.110 in total. The chips cost sh. 100 more than the smokie. How much does the smokie cost?
Aaron: “I think this would be ksh 5, because assuming the price of chips is (ksh 100 + ksh K), where K is the unknown price of smokie, then 100+K+K=ksh 110….Therefore K=ksh5”
2. If it takes five machines five minutes to make five KDFs, how long would it take 100 machines to make 100 KDFs?
Aaron: “1 machine makes 1 KDF in 5 minutes. 100 machines would make 100 KDFs in the same time. 5 Minutes..”
3. In Lake Victoria, there is a patch of water hyacinth. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?
Aaron: “If the lake is full on the 48th day and it kept increasing in half of its size PER day, then the recent half would be the previous day. 47 DAYS!”
The most obvious answer in the first question was sh. 10 and it’s the answer that most people gave. To get the correct answer, one has to realize that the chips do not cost one hundred shillings but “one hundred shillings more than the smokie.” Taking a mathematical approach is the easiest way to solve the problem.
In the second question, it is important to realize that the rate of the machine does not change. So whether the machines are making 100 KDFs or 5 KDFs, they will make the KDFs in the same time.
The last question is very tricky. To solve it, you have to reason backwards and start from when the lake is full of the hyacinth: If it takes one day for the hyacinth to double in size, it means that it took one day for the hyacinth to double from covering half the lake to covering the full lake. Subtracting the one day from the 48 days, we get 47 days.
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