KnowledgeBoat Logo
|

Mathematics

An objective test was given to a group of 168 students. It was found that 56\dfrac{5}{6} of the students gave all correct answers. How many students made 1 or more mistakes?

Fractions

1 Like

Answer

Given,

Total students = 168

Part of students who gave all correct answers = 56\dfrac{5}{6}

Part of students who made 1 or more mistakes = 156=656=161 - \dfrac{5}{6} = \dfrac{6 - 5}{6} = \dfrac{1}{6}.

Students who made 1 or more mistakes = 16\dfrac{1}{6} × Total number of students

= 16×168\dfrac{1}{6} \times 168

= 28.

Hence, no. of students who made 1 or more mistakes = 28.

Answered By

2 Likes


Related Questions