Multiple Choice Questions on The mean weight of 150 students in a certain class is 60 kg The mean weight of boys in the class is ........... for NDA Exam Preparation

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Multiple Choice Questions

The mean weight of 150 students in a certain class is 60 kg The mean weight of boys in the class is ...........

Mathematics (NDA) Statistics
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    The mean weight of 150 students in a certain class is 60 kg. The mean weight of boys in the class is 70 kg and that of girls is 55 kg. What is the number of boys in the class?

    50

    Correct Answer

    55

    Incorrect Answer

    60

    Incorrect Answer

    100

    Incorrect Answer
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