21. किसी कक्षा के विद्यार्थियों की कुल संख्या का 80% लड़के हैं एवं लड़कों
की संख्या 60 है। कक्षा में लड़कियों तथा लड़कों की संख्या का
5
अनुपात निकालिए।
In a class, 80% of the students are boys and the number of boys is
60. Find the ratio of the number of girls and boys in the class.
MATH-VIII[804]
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Answers
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Step-by-step explanation:
first will find the total students in the school
80/100*x=60
x=6000/80
75
now we will subtract the number of boys and girls
75-60=15
therefore there are 15 girls in the school which is 20%
now will find the ratio
60/15
=4/1
=4:1
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