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     EduGorilla 
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    Directions: In a survey of 500 customers, the number of people who buy various grades of rice are as given below:

    A grade only 90 A grade but not B grade 115
    A grade and C grade 40 A grade 130
    B grade and C grade 40 C grade 240
    None of the three grades 120  

    The number of people who buy A or B but not C is

    Options :-

    1. 105
    2. 155
    3. 65
    4. None of these
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