35 students took part in freestyle swimming event. 23 took part in the backstroke event and 10 students took part in both. How many students in total took part in the event?

Answer 1

Number of students who took part in the event is #48#.

To find total number of students, we should add

Now, as #23# students took part in backstroke event and #10# students took part in both i.e. backstroke as well as freestyle, #23-10=13# students participated only in backstroke event.
Similarly, as #35# students took part in freestyle event and #10# students took part in both i.e. backstroke as well as freestyle, #35-10=25# students participated only in backstroke event.
Hence number of students who took part in the event is #25+13+10=48#.
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Answer 2

Total number of students taking part in the event = Number of students in freestyle swimming event + Number of students in backstroke event - Number of students taking part in both events Total number of students = 35 + 23 - 10 = 48.

Therefore, 48 students in total took part in the event.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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