Percentage Practice Test 6 with solutions

Question : 16 of 40

Marks: +1, -0

A school has only three classes which contain 40, 50 and 60 students respectively. The pass percentage of these classes are 10%, 20% and 10% respectively. Find the pass percentage of the school.

10
$12 1/ 3$
$13 1 /3$
15

Validate

Solution:

Total number of students = 40 + 50 + 60 = 150
Total number of students passed =

10/100×40 +20/100×50 +10/100× 60

= 4 + 10 + 6 = 20
Hence, required percentage =

20/150×100= 13 1/3 %

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