Fundamental Principle of Multiplication
Fundamental Principle of Multiplication
If there are two jobs such that one them can be completed in m ways and second job can be completed in n ways, then the two jobs in succession can be completed in m X n ways. and the two jobs are independent of each other that is the occurrence of first job does not effect the occurrence of second job.
For example et us take the case of throwing a dice ad tossing a coin. As the two job are independent of each other because whatever is the outcome of first job that is throwing a dice will not effect the outcome of second job that is tossing a coin.
First job- Throwing a dice can be completed in 6 ways
Second job - Tossing a coin can be completed in 2 ways
Then the two jobs in succession can be completed in 6 X 2 = 12 ways
In a class there are 5 boys and 5 girls. The teacher wants to select a boy and a girl to represent the class in a function. In how many ways can the teacher make this selection ? | |||
| Right Option : B | |||
| View Explanation | |||
There are 5 story books and 10 moral books in a book shop. In how many ways a student can buy a story book and a moral a book? | |||
| Right Option : C | |||
| View Explanation | |||
If there are 10 fountain pens and 12 ball point pens .In how many ways a person can buy a fountain pen and a ball pen ? | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
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