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Question 4 - Page 56 There are 5 children in a group, all of different heights. Can they stand such that four of them say ‘1’ and the last one says ‘0’? Why or why not?If we put the children such that their heights are increasing Yes, this is possible. If wea rrange the five children in increasing order of height (from tallest to shortest), you will get this result. Each of the other four children has one taller neighbor (the one before them) and one shorter neighbor (the one after them, or no neighbor if they are at the end). So, they all say '1’. The tallest child is at the end of the line. Their only neighbor is shorter, so they say '0’. We can also arrange in decreasing order

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 15 years. He provides courses for Maths, Science and Computer Science at Teachoo