Three sets of 40, 50, and 60 students appeare | vedclass

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(A) To find the pass percentage of the whole set,we calculate the total number of students who passed and divide it by the total number of students.To

Vedclass · Accepted Answer

$88 \frac{2}{3}\%$

Vedclass · Answer

(A) To find the pass percentage of the whole set,we calculate the total number of students who passed and divide it by the total number of students.Total number of students = $40 + 50 + 60 = 150$.Number of students who passed in the first set = $40 	imes 100\% = 40$.Number of students who passed in the second set = $50 	imes 90\% = 45$.Number of students who passed in the third set = $60 	imes 80\% = 48$.Total number of students who passed = $40 + 45 + 48 = 133$.Required pass percentage = $\frac{	ext{Total passed}}{	ext{Total students}} 	imes 100 = \frac{133}{150} 	imes 100 = \frac{133 	imes 2}{3} = \frac{266}{3} = 88 \frac{2}{3}\%$

Three sets of $40, 50,$ and $60$ students appeared for an examination,and the pass percentages were $100\%, 90\%,$ and $80\%,$ respectively. The pass percentage of the whole set is:

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