This page is for fun. I am writing this page so that freshers as well as seniors can think logically.I don't think freshers need to panic during 1st round of interview --the written test where the puzzle use to puzzle them.Everybody if we try to solve 5 puzzles per day and 60 days of preparation is taken, that is more than enough to crack an interview.
Lets talk about Puzzle
- Dad, where had you been?" asked Warren. "I had been to the attic, my son," replied Dad. "And do you know what I saw there? There was a big web with 12 spiders and flies on it." "How many spiders were there?" asked the little boy with curiosity. "Well, there were a total of 84 legs on the web," answered Dad with a smile. "Now you can find out how many spiders were there by yourself. Can't you?" Can you help the little boy find out how many spiders were on the web in the attic?
say there were x no of spiders and y number of flies
and 8x+2y=84(Spider has 8 legs and flies have 2)
solving these two equation we get x=10 and y=2
so there were 10 spiders and 2 flies.
from the first tick to last ticks the actual interval is 6-1=5 times
So time taken for each interval =30/5=6sec
for 12 also from the first tick to last ticks the actual interval is 12-1=11 times
so total time taken=11*6=66 seconds
x=2 and N=11