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
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 | |||
Which of the following statement is /are correct? (a) There are 20 dancers and 8 non dancers . In 160 ways the choreographer can choose a dancer and a non dancer . (b) In a bakery there are 5 cakes ,7 pastries and 4 swiss rolls . In 16 ways a customer can buy a cake , pastry and a swiss role . | |||
| Right Option : A | |||
| View Explanation | |||
In a furniture shop there are 12 chairs and 15 tables. A customer can buy a chair and a table in how many ways ? | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thI 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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Eshan Arora
8thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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Prisha Gupta
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