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The given bar graph represents the number of students admitted in four schools (S1, S2, S3, S4) during two consecutive years 2017 and 2018. What percentage is the average admission of schools S3 and S4 in 2018 of the average admission of schools S1 and S2 in 2017?

The given bar graph represents the number of students admitted in four schools (S1, S2, S3, S4) during two consecutive years 2017 and 2018. What percentage is the average admission of schools S3 and S4 in 2018 of the average admission of schools S1 and S2 in 2017? Correct Answer 81.63%

Given:

Number of students admitted in school S3 in 2018 = 150

Number of students admitted in school S4 in 2018 = 250

Number of students admitted in school S1 in 2017 = 250

Number of students admitted in school S2 in 2017 = 240

Formula:

x as a percentage of y = (x/y) × 100 

Calculation:

Average admission in school S3 and S4 in 2018 = (150 + 250)/2 = 400/2 = 200

Average admission in school S1 and S2 in 2017 = (250 + 240)/2 = 490/2 = 245

∴ Required percentage = (200/245) × 100 = 81.63%

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