Multiple Choice Questions on The sum of the number of boys and girls in a school is 150 if the number of boys is x then the numbe........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The sum of the number of boys and girls in a school is 150 if the number of boys is x then the numbe...........

Quantitative Aptitude ( CCS) Percentage
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    The sum of the number of boys and girls in a school is 150. if the number of boys is x, then the number of girls becomes x% of the total number of students. The number of boys is :

    30

    Incorrect Answer

    40

    Incorrect Answer

    50

    Incorrect Answer

    60

    Correct Answer
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    Explanation:

    We have : x + (x% of 150) = 150 

    => x + (x/100)*150] = 150

    => 5/2x = 150

    => x = (150*2)/5 = 60

    Hence, option 4 is the correct answer.

    By: Amit Kumar
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