The average score of 84 students (boys a...

The average score of 84 students (boys and girls) in a test is `57`. The ratio of the number of boys to that of girls is `10 : 11`. The average score of boys is 20% less than that of girls. What is the average score of girls in the test?

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SSC SELECTION POST-SSC SELECTION POST 10 NOV 2020 SHIFT 1 MATRICULATION LEVEL-Section : Quantitative Aptitude

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