top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

If there is an error of 3% in measuring the side of a square. What is the percentage of error in area of square?

0 votes
55 views
If there is an error of 3% in measuring the side of a square. What is the percentage of error in area of square?
posted May 5, 2017 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Answer

0 votes

6 percent
Explanation

A=x^2
dA=2x dx divide both sides by A or x^2
dA/A=2 dx/x
=2*0.03
=0.06
Thus percent error in A=6 percent

answer May 5, 2017 by Kewal Panesar



Similar Puzzles
0 votes

A dishonest milkman professes to sell his milk at C.P. but he mixes it with water and thereby gains 25%. What is the percentage of water in the mixture?

0 votes

In a cricket match, Team India scored 240 runs without losing a wicket. The score consisted of byes, wides and runs scored by two opening batsmen: Sachin and Ganguly. The runs scored by the two batsmen are 11 times wides. There are 7 more wides than byes.

If the ratio of the runs scored by Sachin and Ganguly is 5:6, then what is the percentage of run scored by Sachin out of total score of Team India?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...