q2en2021
Answered

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The 7 dwarves only have 4 beds, so 3 dwarves sleep on the floor. How many different ways can 4 dwarves be chosen to sleep on the beds?
A.
7
B.
42
C.
70
D.
35

Sagot :

Ichnajat

Answer:

c 70 chosen to sleep on the bed
Answer is 35. Basic probability. Non-Distinguishable items. 7pick4. 7*6*5*4/4! = 35.
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