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Standard XIII

Mathematics

Fundamental Principle of Counting

In a shelf th...

Question

In a shelf there are $2$ different physics books and $3$ different chemistry books. The number of ways in which a student can select a physics book or chemistry book is:

5

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Solution

The correct option is A $5$
A student can select physics book or a chemistry book in $2 + 3 = 5$ ways.
The five ways are $P_{1}, P_{2}, C_{1}, C_{2}, C_{3}$

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Fundamental Principle of Counting

Standard XIII Mathematics

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In a shelf there are 2 different physics books and 3 different chemistry books. The number of ways in which a student can select a physics book or chemistry book is:

The correct option is A 5A student can select physics book or a chemistry book in 2+3=5 ways. The five ways are P1,P2,C1,C2,C3

In a shelf there are $2$ different physics books and $3$ different chemistry books. The number of ways in which a student can select a physics book or chemistry book is:

The correct option is A $5$
A student can select physics book or a chemistry book in $2 + 3 = 5$ ways.
The five ways are $P_{1}, P_{2}, C_{1}, C_{2}, C_{3}$