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Rational Numbers | Rational Numbers - Exercise

Question 103

\frac{1}{6} of the class students are above average, \frac{1}{4} are average and the rest are below average. If there are 48 students in all, how many students are below average in the class?

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From the question it is given that,

Number of students in the class who are above average = \frac{1}{6}

Number of students in the class who are average = \frac{1}{4}

Number of students in the class who are below average = 1 – ( \frac{1}{6} + \frac{1}{4} )

= 1 –. \frac{(2+3)}{12}

=1-\frac{5}{12}=\frac{(12-5)}{12}=\frac{7}{12} students

So, the number of students in the class = 48

Then,

Number of students below average = \frac{7}{12} × 48

= 7 × 4

= 28 students

∴The number of students in the class who are below average is 28.

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Question 103

\frac{1}{6} of the class students are above average, \frac{1}{4} are average and the rest are below average. If there are 48 students in all, how many students are below average in the class?

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

From the question it is given that,

Number of students in the class who are above average = \frac{1}{6}

Number of students in the class who are average = \frac{1}{4}

Number of students in the class who are below average = 1 – ( \frac{1}{6} + \frac{1}{4} )

= 1 –. \frac{(2+3)}{12}

=1-\frac{5}{12}=\frac{(12-5)}{12}=\frac{7}{12} students

So, the number of students in the class = 48

Then,

Number of students below average = \frac{7}{12} × 48

= 7 × 4

= 28 students

∴The number of students in the class who are below average is 28.

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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