CAT 2019 VARC section was a true nightmare. It was the most taxing section of the three. With some of its questions requiring critical reasoning, demanded even the avid of the readers to read and reread the passages before landing on an answer. We've tried our best to present these actual questions from CAT 2019 VARC section in their least intimidating from (at least in the font), with detailed solutions in a student friendly format to test yourself and understand the importance of reading for VARC section of the CAT exam. For a curated reading list head out here: Bharath’s Reading List. If you are planning to take CAT 2019 paper as a full fledged mock, it would help if you go back to : CAT Question Bank and solve questions that are not from actual CAT Question papers.
The four sentences (labelled 1, 2, 3, 4) given below, when properly sequenced would yield a coherent paragraph. Decide on the proper sequence of the order of the sentences and key in the sequence of the four numbers as your answer.
Question 26 : 1. If you’ve seen a little line of text on websites that says something like "customers who bought this also enjoyed that” you have experienced this collaborative filtering firsthand.
2. The problem with these algorithms is that they don’t take into account a host of nuances and circumstances that might interfere with their accuracy.
3. If you just bought a gardening book for your cousin, you might get a flurry of links to books about gardening, recommended just for you! – the algorithm has no way of knowing you hate gardening and only bought the book as a gift.
4. Collaborative filtering is a mathematical algorithm by which correlations and cooccurrences of behaviors are tracked and then used to make recommendations.
Sentence 4 is the best starting sentence as it introduces the idea of ‘collaborative filtering’. Sentence 1 adds to 4, describing how collaborative filtering works. So, 1 follows 4. Sentence 2 identifies a crucial problem with collaborative filtering algorithms. Sentence 3 provides an example to substantiate 2. So, 4123 is the right order.
4123 is the correct answer.
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