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OpenStudy (goformit100):
The class mark of the class 90-120 is : (A) 90 (B) 105 (C) 115 (D) 120
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OpenStudy (anonymous):
c.m.=upper limit +lowerlimit /2 =90+120/2 =210/2 =105
OpenStudy (goformit100):
Thank you yaar
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