If 3 spiders make 3 webs in 3 days, then 1 spider will make 1 web in how many days?
Choose the correct option.
A) 7  B) 6  C) 5  D) 4  E) 3
Let the required number days be x.   Less spiders, More days (Indirect Proportion)   Less webs, Less days (Direct Proportion)   spiders 1:3   Webs 3:1   1 x 3 x x = 3 x 1 x 3   =&gt; x= 3   Answer is 3
<result>E</result>
If 3 spiders make 3 webs in 3 days, then 1 spider will make 1 web in how many days?