New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The number of boys and girls in a school is 200 and 320

    respectively. 20% of boys left the school while 40 girls took admission in the school. Find the new ratio of boys to girls in the school.
    A 7:15 Correct Answer Incorrect Answer
    B 20:39 Correct Answer Incorrect Answer
    C 4:9 Correct Answer Incorrect Answer
    D 17:30 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Required ratio = (0.80 x 200) : (320 + 40) = 160:360 = 4:9

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