in a Venn diagram represents this: in an exam ,31 candidate passed chemistry,29 passed physics and 3 failed both subject.if 50 candidate sat for the exam, how many of them passed chemistry
To find out how many candidates passed chemistry, we need to find the number of candidates who passed only chemistry and those who passed both chemistry and physics.
We are given that:
- 31 candidates passed chemistry
- 3 candidates failed both subjects
Therefore, the number of candidates who passed chemistry only can be found by subtracting the number of candidates who passed both subjects (3) from the total number of candidates who passed chemistry (31).
Candidates who passed chemistry only = 31 - 3 = 28
Hence, 28 candidates passed chemistry.
To determine the number of candidates who passed chemistry, we can use the information provided in the Venn diagram.
1. Start by drawing a Venn diagram with two overlapping circles representing chemistry and physics.
2. Label one circle as "Chemistry" and the other as "Physics."
3. Write the number 31 inside the circle representing Chemistry, as 31 candidates passed Chemistry.
4. Write the number 29 inside the circle representing Physics, as 29 candidates passed Physics.
5. Write the number 3 inside the overlapping region of the circles, as 3 candidates failed both subjects.
6. Add the numbers inside each circle: 31 for Chemistry and 29 for Physics. It totals to 60 (31+29).
7. Since the total number of candidates who sat for the exam is 50, subtract 60 (total from step 6) from 50. 50 - 60 = -10.
Since we have a negative result, it means there must be an error in the given information or the numbers provided are not consistent. Please recheck the information and provide accurate data to determine the number of candidates who passed Chemistry.
To find out how many candidates passed in chemistry, we need to subtract the number of candidates who failed both subjects from the total number of candidates who passed in chemistry.
Given information:
Total number of candidates = 50
Number of candidates who passed in chemistry = 31
Number of candidates who passed in physics = 29
Number of candidates who failed both subjects = 3
To determine the number of candidates who passed in chemistry, we can apply the following steps:
Step 1: Represent the information using a Venn diagram.
We start by drawing two overlapping circles to represent chemistry and physics. Label one circle as "Chemistry" and the other as "Physics." Place 31 inside the "Chemistry" circle to represent the number of candidates who passed in chemistry. Place 29 inside the "Physics" circle to represent the number of candidates who passed in physics. Place 3 in the overlapping region to represent the number of candidates who failed both subjects.
Step 2: Calculate the number of candidates who passed in chemistry.
Since we know that 3 candidates failed both subjects, we subtract this number from the total number of candidates who passed in chemistry.
Number of candidates who passed in chemistry = Total number of candidates who passed in chemistry - Number of candidates who failed both subjects.
Number of candidates who passed in chemistry = 31 - 3
Number of candidates who passed in chemistry = 28.
Therefore, 28 candidates passed in chemistry out of the 50 candidates who sat for the exam.