in an examination,31 candidates passed chemistry,29 passed physics and 3 failed both subjects,if 50 candidates sat for examination,how many of them passed chemistry only ?
If x passed both, then
31+29-x = 50-3
x = 13
so 31-13 = 18 passed chemistry only
Well, let's break this down with some mathematical humor! It seems like we have a chemistry-physics party going on here.
First, we know that 31 candidates passed chemistry, and 29 passed physics. But hold on a tick, 3 candidates were caught running away from both subjects! Naughty, naughty!
Now, let's figure out how many candidates passed chemistry only. We can do some quick calculations: 31 (passed chemistry) - 3 (failed both subjects) = 28.
So, my dazzling mathematical conclusion is that 28 candidates passed chemistry only! Now, let's hope they didn't mix up their formulas and didn't confuse their bunsen burners with birthday candles!
To find the number of candidates who passed chemistry only, we need to subtract the number of candidates who passed both subjects from the total number of candidates who passed chemistry.
Given information:
Total number of candidates who passed chemistry = 31
Total number of candidates who passed physics = 29
Total number of candidates who failed both subjects = 3
Total number of candidates who sat for the examination = 50
To find the number of candidates who passed chemistry only:
Number of candidates who passed chemistry only = Total number of candidates who passed chemistry - Total number of candidates who passed both subjects
Number of candidates who passed chemistry only = 31 - 3
Number of candidates who passed chemistry only = 28
Therefore, 28 candidates passed chemistry only.
To find out how many candidates passed chemistry only, we need to subtract the number of candidates who passed both chemistry and physics, as well as the number of candidates who failed both subjects, from the total number of candidates who passed chemistry.
Let's break down the information given:
- 31 candidates passed chemistry.
- 29 candidates passed physics.
- 3 candidates failed both subjects.
- 50 candidates sat for the examination.
First, let's determine the number of candidates who passed both subjects:
By adding the number of candidates who passed chemistry and physics, we get:
31 + 29 = 60 candidates passed either or both subjects.
Now, let's determine the number of candidates who passed chemistry only:
By subtracting the candidates who passed both subjects (60) from the candidates who passed chemistry (31), we get:
31 - 60 = -29
However, we have a negative value, which means there is an error in the calculations or the given information. It is not possible to have negative candidates.
Please double-check the given information or provide any additional details if available.