tag:blogger.com,1999:blog-8289183275234086319.post5824817691578057616..comments2019-04-01T00:30:43.611-07:00Comments on {inte{r}esting} - ઇન્ટરેસ્ટીંગ: બેંક કેશીયરનો ગોટાળોUnknownnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8289183275234086319.post-79724264735983390492010-10-13T21:52:55.437-07:002010-10-13T21:52:55.437-07:00AlpeshBhai,
No of open boxes are 1,4,9,16,25,36,...AlpeshBhai,<br /><br /><br />No of open boxes are 1,4,9,16,25,36,49,64,81,100. that is all perfect squares. <br /><br />This is because normally each no has even no of factors <br /><br />For example factors of 24 are <br />1, 2, 3 , 4, 6, 8, 12, and 24 <br /><br />that is total of 8 factors <br /><br />so it will be opened and than closed 4 times. <br /><br />But a perfect square has odd no of factors<br /><br />For example factors of 36 are <br />1 , 2 , 3, 4 ,6, 9, 12 ,18, and 36 <br />that is total 9 factors so it will be opened and closed 4 times and <b> than fifth time it will remain open.</b><br /> <br />thus for 100 boxes answer is 10.<br /><br /><br />I have given this answar last time also and again I am giving the smae answer.<br /><br />Dipali V Shah<br />KapadvanjDipalihttps://www.blogger.com/profile/15115490824686268198noreply@blogger.com