In a coaching there are 3 batches namely lolos momos and jojos Out of the total students in the coac...........

Quant (SSC) Percentage

In a coaching there are 3 batches namely lolos,momos and jojos. Out of the total students in the coaching there are 25%, 35% and 40% students in these batches repectively. If 2%, 4% and 5% students of respective batches passes then what is the percentage of failed students?

96.5%

86.1%

39.6%

96.1%

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Explanation:

Let total number of students in the coaching be x
Then number of student in lolos batches = 25% of x = 0.25x
number of student in momos batches = 35% of x = 0.35x
number of student in jojos batches = 40% of x = 0.40x
number of passed students in lolos batches = 2% of 0.25x = 0.005x
number of passed students in momos batches = 4% of 0.35x = 0.014x
number of passed students in jojos batches = 5% of 0.40x = 0.02x
so total number of passed students = 0.005 + 0.014x + 0.02x = 0.039x
therefore number of failed students = Total number of students – total number of passed students
= x - 0.039x = 0.961x
Hence the percentage of failed students
96.1%