Question

    The number of boys and girls in a school is 150 and 280

    respectively. 30% of boys left the school while 20 girls took admission in the school. Find the new ratio of boys to girls in the school.
    A 8:15 Correct Answer Incorrect Answer
    B 9:20 Correct Answer Incorrect Answer
    C 6:13 Correct Answer Incorrect Answer
    D 7:20 Correct Answer Incorrect Answer

    Solution

    Required ratio = (0.70 x 150) : (280 + 20) = 105:300 = 7:20

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