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A survey was conducted among 300 students. If was found that 125 students like to play cricket, 145 students like to play football and 90 students like to play tennis. 32 students like to play exactly two games out of the three games.
Q. How many students like to play all the three games?
  • a)
    14
  • b)
    21
  • c)
    28
  • d)
    35
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A survey was conducted among 300 students. If was found that 125 stude...
Total number of students = 300


⇒ 300 = 125 + 145 + 90


Again,


From (i) and (ii)
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Most Upvoted Answer
A survey was conducted among 300 students. If was found that 125 stude...
Given Information:

- Total number of students surveyed = 300
- Number of students who like to play cricket = 125
- Number of students who like to play football = 145
- Number of students who like to play tennis = 90
- Number of students who like to play exactly two games out of the three games = 32

To find:

- Number of students who like to play all the three games

Solution:

Let's represent the number of students who like to play all three games by "x".

From the given information, we can create the following Venn diagram:

```
Cricket (125)
/ | \
/ | \
/ | \
Football (145)--------Both--------Tennis (90)
\ | /
\ | /
\ | /
Neither (48)
```

We can see that:

- Number of students who like to play at least one game = 125 + 145 + 90 = 360 (Note that some students may like to play more than one game)
- Total number of students surveyed = 300

This means that some students like to play more than one game. Let's find out how many such students are there.

- Number of students who like to play exactly two games out of the three games = 32

We can see from the Venn diagram that the number of students who like to play exactly two games is the sum of the three regions where two circles overlap:

- Number of students who like to play cricket and football only = ?
- Number of students who like to play cricket and tennis only = ?
- Number of students who like to play football and tennis only = ?

Let's find these values one by one.

- Number of students who like to play cricket and football only:

From the Venn diagram, we can see that the region where only cricket and football overlap is "Both - x". So:

Both - x = ?
Both = 32
x = Both - 32 = ?

- Number of students who like to play cricket and tennis only:

From the Venn diagram, we can see that the region where only cricket and tennis overlap is "Both - x". So:

Both - x = ?
Both = 32
x = Both - 32 = ?

- Number of students who like to play football and tennis only:

From the Venn diagram, we can see that the region where only football and tennis overlap is "Both - x". So:

Both - x = ?
Both = 32
x = Both - 32 = ?

Now, we can find the number of students who like to play all three games:

- Number of students who like to play at least one game = 360
- Number of students who like to play more than one game = (cricket and football only) + (cricket and tennis only) + (football and tennis only) + x
- Substituting the values we found above, we get:

Number of students who like to play more than one game = ? + ? + ? + x
Number of students who like to play more than one game = (Both - x) + (Both - x) + (Both - x) + x
Number
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A survey was conducted among 300 students. If was found that 125 students like to play cricket, 145 students like to play football and 90 students like to play tennis. 32 students like to play exactly two games out of the three games.Q. How many students like to play all the three games?a)14b)21c)28d)35Correct answer is option 'A'. Can you explain this answer?
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