Question

The class mark of the class 15.5-20.5 is

Answer 1

Answer:

(upper limit+lower limit) /2

(20.5+15.5) /2

36/2

18

Answer 2

Class mark of the class is 18.

Step-by-step explanation:

Since we have given that

Class 15.5 - 20.5

So, Upper limit = 20.5

Lower limit = 15.5

So, Class mark is given by

$\dfrac{UL+LL}{2}\\\\=\dfrac{20.5+15.5}{2}\\\\=\dfrac{36}{2}\\\\=18$

Hence, class mark of the class is 18.

# learn more:

Find the class marks of classes 15.5-18.5 and 50-75

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