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On 15th August, a program is organized by 12 students of a school. They have 3 bamboos, two red and one green. They form rows of 3 each and hold bamboos in such a way that the
bamboos lie between the rows and each bamboo is held by 6 students. If a student can take any place in the array, how many different arrangements are Possible?
O 12
12! x 6
O 12! x3
O 12!x2
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Step-by-step explanation:
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Answer:
the answer is (c) 12 x 3
Step-by-step explanation:
- if we see there are total 3 rows os each and every row has 6 students.
- if a student can take any place in the array , therefore its between 2 students to change their respective position.
- there are 6 students in each row , therefore
2 x 6 = 12
- here we take only 2 students in teh place of 3 from each row is because if one hast to change then another student has to change its place but the 3rd one remains same , by that cause we use only 2.
- Now there are 12 possibilities and there are total 3 rows therefore,
12 x 3
Hence, there are 12 x 3 different arrangements ae posible.
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