Ratio, Proportion

Quantitative Aptitude( Paper-I )

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In a class of 84 students, boys and girls are in the ratio 5 : 7. Among the girls 7 can speak Hindi and English. 50% of the total students can speak only Hindi. The ratio of the number of students speaking only Hindi to that speaking only English is 21 : 16. The ratio of the number of boys speaking English only to that of girls speaking English only is 3 : 5. What is the number of girls who speak English only?

Explanation:

total no of student=84
total no of boys=35
total no of girls=49
total no of student can speak only hindi=42
total no of student can speak only english=32
no of boys can speak only english=12
n of girls can spaek only english=20

By: MIRZA SADDAM HUSSAIN

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