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In an examination 50% students passed in science and 75% sst passed in school while 20% failed in both the subject ,if 270 passed in both subject find the total number of students appeared in exam?
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In an examination 50% students passed in science and 75% sst passed in...
Given information:
- 50% of students passed in Science.
- 75% of students passed in SST.
- 20% of students failed in both subjects.
- 270 students passed in both subjects.

To find: The total number of students appeared in the exam.

Let's assume the total number of students appeared in the exam as "x".

Calculations:
1. Number of students passed in Science = 50% of x = 0.5x
2. Number of students passed in SST = 75% of x = 0.75x
3. Number of students failed in both subjects = 20% of x = 0.2x

From the given information, we know that 270 students passed in both subjects. So, the number of students who passed in either Science or SST can be calculated as follows:

Number of students passed in either Science or SST = Number of students passed in Science + Number of students passed in SST - Number of students passed in both subjects

Using the above formula, we can substitute the values:

0.5x + 0.75x - 0.2x = 270

Simplifying the equation:

1.25x - 0.2x = 270
1.05x = 270
x = 270 / 1.05
x ≈ 257.14

Since we cannot have a fraction of a student, we can round up the number to the nearest whole number.

Therefore, the total number of students appeared in the exam is approximately 257.

Answer:
The total number of students appeared in the exam is approximately 257.
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In an examination 50% students passed in science and 75% sst passed in school while 20% failed in both the subject ,if 270 passed in both subject find the total number of students appeared in exam?
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In an examination 50% students passed in science and 75% sst passed in school while 20% failed in both the subject ,if 270 passed in both subject find the total number of students appeared in exam? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In an examination 50% students passed in science and 75% sst passed in school while 20% failed in both the subject ,if 270 passed in both subject find the total number of students appeared in exam? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an examination 50% students passed in science and 75% sst passed in school while 20% failed in both the subject ,if 270 passed in both subject find the total number of students appeared in exam?.
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