Question
The table given below shows the percentage of Students
in five different Schools out of total number of Students in all five Schools together and ratio of number of boys to girls students in the respective schools. Total number of students in all five schools together is 4000. Determine the average of number of girls in all five schools together.Solution
ATQ,
Desired average = (0.14 × 4000 + 0.08 × 4000 + 0.10 × 4000 + 0.06 × 4000 + 0.08 × 4000)/5 = (560 + 320 + 400 + 240 + 320)/5 = 1840/5 = 368
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