Question

In an aptitude test, three grades are given.
A, B, C grades are received by 20 %,
35 % and 25 % students respectively. Find
the number of students appeared in an
exam, if 60 students failed.​

Answer 1

HELLOW FRIEND, CHAI PEELO.

GIVEN,

GRADE A STUDENTS = 20%

GRADE B STUDENTS = 35%

GRADE C STUDENTS = 25%

TOTAL STUDENTS FAILED = 60_______(1)

TOTAL % OF STUDENTS PASSED = 80%

THEREFORE, TOTAL % OF STUDENTS FAILED

= 100-80

= 20%

SO, 60 STUDENTS = 20% OF ALL STUDENTS

(from (1)

$= > \frac{x}{100} \times 20 = 60 \\ = > 20x \: = 6000 \\ = > \: x \: = \frac{6000}{20} \\ = > x \: = 300$

Therefore, a total of 300 students appeared in the exam.

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Answer 2

Answer:

300 Students

Step-by-step explanation:

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