Question

piyush marks in mathmaticd were wrongly read as 65 instead of 85 . what is the percentage error in the mark?

Answer 1

The percentage error is 23.52%

Step-by-step explanation:

Actual Marks = 85

Error read marks = 65

So, difference between the marks is 85 - 65 = 20 marks

Now, \textrm{Percentage error} = \frac{\textrm{Error}}{\textrm{Actual marks}} \times 100

⇒Percentage error = $\frac{20}{85} \times 100$

= 23.52 %

So, the percentage error is 23.52%

Answer 2

The percentage error in the mark is 23.52%.

Step-by-step explanation:

Actual marks of Piyush is 85

Error marks is 65

We need to find the percentage error in the mark. The percentage error in any value is given by :

$\%=\dfrac{\text{error}}{\text{actual values}}\times 100\\\\\%=\dfrac{85-65}{85}\times 100\\\\\%= 23.52\%$

So, the percentage error in the mark is 23.52%.

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