Mathematics

A bricklayer measured the length of a wall and obtained 4.10m. If the actual length of…

A bricklayer measured the length of a wall and obtained 4.10m. If the actual length of the wall is 4.25m, find his percentage error.

  • A.
    3 9/17%
  • B.
    3 27/41%
  • C.
    15%
  • D.
    35 5/17%
  • E.
    36 24/41%
Correct Answer: Option A
Explanation

Error = 4.25 – 4.10 = 0.15

% error = (frac{0.15}{4.25} times 100%)

= (frac{15}{frac{17}{4}} = frac{15 times 4}{17})

= (3frac{9}{17} %)