Answer

Verified

414k+ views

**Hint:**We have to find a reading error in percent. For which first we have to find error in reading then we will find the percentage of it by formula. Percentage error = $\dfrac{{{\text{error}}}}{{{\text{correct number}}}} \times 100$

__Complete step-by-step answer__:We have given

Correct number = 42

Misread as = 24

Error = ( correct number – misread )

Error = 42 – 24 = 18

Now we have to find error percentage using formula

Percentage error = $\dfrac{{{\text{error}}}}{{{\text{correct number}}}} \times 100$

Percentage error = $\dfrac{{18}}{{42}} \times 100 = 42.8\% $

**Hence option C is the correct option.**

**Note**: Whenever we get this type of question the key concept of solving is we should just have knowledge of percentage and basic knowledge of what is error. An error is something you have done which is considered to be incorrect or wrong, or which should not have been done.

Recently Updated Pages

Differentiate between Shortterm and Longterm adapt class 1 biology CBSE

How do you find slope point slope slope intercept standard class 12 maths CBSE

How do you find B1 We know that B2B+2I3 class 12 maths CBSE

How do you integrate int dfracxsqrt x2 + 9 dx class 12 maths CBSE

How do you integrate int left dfracx2 1x + 1 right class 12 maths CBSE

How do you find the critical points of yx2sin x on class 12 maths CBSE

Trending doubts

Give 10 examples for herbs , shrubs , climbers , creepers

Difference Between Plant Cell and Animal Cell

Name 10 Living and Non living things class 9 biology CBSE

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Write a letter to the principal requesting him to grant class 10 english CBSE

List some examples of Rabi and Kharif crops class 8 biology CBSE

Change the following sentences into negative and interrogative class 10 english CBSE

Fill the blanks with proper collective nouns 1 A of class 10 english CBSE