Question

find the class marks of classes 15-35 and 20-40​

Answer 1

Answer:

25 and 30

Step-by-step explanation:

Answer 2

Answer:

Class MARK of 15-35 is 25

explanation:

$=>\frac {35+15}{2}=\frac {50}{2}=25$

Class MARK of 20-40 is 30

explanation:

$=>\frac{40+20}{2}= \frac{60}{2} = 30$

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