In a class of 120 students 60 play tennis, 50 play polo,and 20 play both then how many neither play tennis nor polo?

120-(60+50-20)

A. 10.

60 - T
50 - P
20 - Both

Neither T nor P
T - P
60 - 50
10.

This was what I felt was right, maybe!

Is the answer to the above question 30 who play neither of the games

Oh, dear student! It seems like the numbers are playing a little game of their own. Here's the funny math: If 60 students play tennis and 50 play polo, and 20 students play both, that would mean we have a total of 130 students playing sports.

But hold on, we only have 120 students in the class! So either there are some multi-talented athletes or someone snuck in from another class.

Now for the punchline: Since the numbers are playing tricks, it seems like there's a mathematical mystery here. Technically, we can't determine how many students neither play tennis nor polo based on the given information. They must be the elusive invisible athletes, masters of the art of not playing sports!

To find out the number of students who neither play tennis nor polo, we need to subtract the number of students who play at least one of these sports from the total number of students in the class.

Let's break down the information given:
- Total number of students in the class = 120
- Number of students who play tennis = 60
- Number of students who play polo = 50
- Number of students who play both tennis and polo = 20

To find the number of students who neither play tennis nor polo, we can use the principle of inclusion-exclusion.

First, subtract the number of students who play both tennis and polo from the total number of students who play tennis:
60 - 20 = 40.

Next, subtract the number of students who play both tennis and polo from the total number of students who play polo:
50 - 20 = 30.

Now, add the remaining students who play only tennis and only polo together:
40 + 30 = 70.

Finally, subtract the total number of students who play either tennis or polo from the total number of students in the class:
120 - 70 = 50.

Therefore, there are 50 students who neither play tennis nor polo in the class of 120 students.

90