Question

3 books of physics, 4 books of chem, 5 books of maths are arranged in a shelf, fond the probability of no physics books are placed together??

Answer 1

Answer:

the answer is 9/12 = 3/4

Step-by-step explanation:

no. of possible outcomes = 12

P(E) = no. of favourable outcomes/no. of possible outcomes

= 9/12

= 3/4

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Answer 2

Answer:

total no. of books-3+4+5

=12

no. of books of physics=3

probability= 3/12

hope this is helpful