Find the class mark of class …
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Yogita Ingle 5 years, 2 months ago
Given class 100-120
lower limit = 100,
upper limit = 120
{tex}class \: mark(x)\\ = \frac{lower\:limit - upper\:limit }{2}\\=\frac{100+120}{2}\\=\frac{220}{2}\\=110{/tex}
Therefore,
Class mark of the class 100-120 is 110
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