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    Question

    Out of total number of students in a class, 45% are boys

    and remaining are girls. If 50% of girls which is 176, participated in the drawing competition, then find the total number boys in the class.
    A 640 Correct Answer Incorrect Answer
    B 352 Correct Answer Incorrect Answer
    C 288 Correct Answer Incorrect Answer
    D 320 Correct Answer Incorrect Answer

    Solution

    Let us assume that total number students in the class = '100x' So, total number of boys in the class = 0.45 X 100x = '45x' Total number of girls in the class = 0.55 X 100x = '55x' ATQ; (50/100) X 55x = 176 Or, x = 176 X (1/55) X (100/50) Or, x = 6.4 Total number of boys = 45 X 6.4 = 288 

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