BICYCLE

How many students use both a bike and a car each week to get to school? See details below.?

In a class of 26 students, 12 ride their bike to school at least once each week.20 come to school by car at least once a week. Two students use neither bike or car to get to school.See question

Let
B = set of students who ride their bike
C = set of students who comes by car
|B| = 12
|C| = 20
BUC = set of students who use a bike or car
| BUC | = 26 – 2 = 24
B∩C = set of students who use both bike and car
| BUC | = |B| + |C| – | B∩C |
24 = 12 + 20 – | B∩C |
| B∩C | = 12 + 20 – 24
| B∩C | = 8 no. of students who use both bike and car

Bikecar

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