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The class-mark of the class 20-30 is:
  • a)
    20
  • b)
    30
  • c)
    25
  • d)
    10
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The class-mark of the class 20-30 is:a)20b)30c)25d)10Correct answer is...
Class Mark = Upper limit + Lower limit /2= 20+30/2= 50/2= 25 Ans.Correct option {C} .
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Community Answer
The class-mark of the class 20-30 is:a)20b)30c)25d)10Correct answer is...
Answer should be 20+30=50÷2=25.
The class mark should be 25 and the class size should be 30-20=10.
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The class-mark of the class 20-30 is:a)20b)30c)25d)10Correct answer is option 'C'. Can you explain this answer?
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