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In a school there were 1554 students and...

In a school there were `1554` students and the ratio of the number of the boys and girls was `4 : 3` .After few days, `30` girls joined the school but few boys left , as a result the ratio of the boys and girls became `7:6` .The number of boys who left the school is

A

76

B

74

C

84

D

86

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The correct Answer is:
A
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In a school there were 1554 students and the ratio of the number of the boys and girls was 4 : 3. After few days, 90 girls joined. the school but few boys left, as a result the ratio of the boys and girls became 13 : 12.The number of boys who left the school is- एक विद्यालय में 1554 छात्र थे और लड़कों और लड़कियों की संख्या का अनुपात 4 : 3 था। कुछ दिनों बाद 90 लडकियों ने उस विद्यालय में प्रवेश लिया, कुछ लड़कों ने विद्यालय छोड़ दिया, परिणामस्वरूप लड़को और लड़कियो का अनुपात 13 : 12 हो गया। विद्यालय छोड़ने वाले लड़को की संख्या कितनी है?

In a school there were 550 students and the ratio of boys and girls was 6:5. After some time 50 girl students joined the school but few boys left the school. As a result,the ratio of boys and girls became 11:12 .Find how many boys left the school.

The total number of students in a school was 660. The ratio of number of boys and girls was 13 : 9. After some days, 30 girls joined the school and some boys left. The new ratio of number of boys and girls became 6:5. Find the number of boys who left the school.

The total number of students in a school was 660 .the ratio of number of boys and girls was 13 :9 After some days , 30 girls joined the school and some boys left .The new ratio of number of boys and girls became 6:5 Find the number of boys who left the school .

The total number of students in a school was 660 .The ratio of number of boys and girls was 13:9 After some days , 30 girls joined the school and some boys left .the new ratio of number of boys and grils became 6:5 .Find the number of boys who left the school .

In a school the ratio between boys and girls is 3:4. Find the percentage of boys in the school

In a school, there are 720 students. If there are 300 boys, then find the ratio of the number of girls to that of boys.

There are 30 boys and 20 girls in a class. The ratio of the number of girls to the number of boys is

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