You need to put your reindeer, Dancer, Cupid, Rudy, and Bloopin, in a single-file line to pull your sleigh. However, Cupid and Rudy are best friends, so you have to put them next to each other, or they won't fly. How many ways can you arrange your reindeer?
PLEASE SHOW STEPS AND EXPLAIN
Answer :
Given data is :
Total no.of friends = 5
No.of best friends = 2
Let us take,
Reindeer= Re
Dancer = D
Bloopin = B
Cupid = C
and Rudy = R
So we can arrange them in 4 different ways as reindeer, Dancer, Bloopin and Cupid and Rudy.(Re,D,B,CR)
Therefore,
No.of ways = 4! * 2! = 24 * 2 = 48 ways
Total No.of possibilities = 48
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