Instead of recording the number 1.23cm of the radius of a tube, a student recorded…

Home » Past Questions » Mathematics » Waec » 1989 » Instead of recording the number 1.23cm of the radius of a tube, a student recorded…
Mathematics WAEC 1989

Instead of recording the number 1.23cm of the radius of a tube, a student recorded 1.32cm. Find the percentage of error, correct to one decimal place.

  • 6.8%
  • 7.3% checkmark
  • 9.6%
  • 14.4%
  • 15.4%

The correct answer is: B

Explanation

% error =
error/exact
x
100/1



=
0.09/1.23
x
100/1
= 7.3%
Previous Question Next Question

Leave A Comment