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If the class mark and class size of a class are 6 and 2 respectively, then the upper limit of the class is |
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Answer» Answer: Let X be lower LIMIT and y be UPPER limit.x+y/2=6x+y=12 ................ (1)y-x=7 .................... (2)ADDING equations (1),(2):-2y=19y=9.5putting value |
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