Multiple Choice Questions on 16 children are to be divided into two groups A and B of 10 and 6 children The average percent marks........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

16 children are to be divided into two groups A and B of 10 and 6 children The average percent marks...........

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    16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the children of group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of group B ?

    233/3

    Correct Answer

    243/4

    Incorrect Answer

    254/5

    Incorrect Answer

    345/7

    Incorrect Answer
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    Explanation:

    Required average = [(76 * 16) - (75 * 10)] / 6 = (1216 - 750)/6 = 466/3 = 233 /3

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