Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A six faced dye whose faces are marked with 1, 2, 3, 4, ...... 6 is tossed n times and the list of n numbers obtained is noted down. The no. of ways exactly 3 numbers appear in the list.
A
B
C
6 
D
Text Solution
Verified by ExpertsThe correct answer is:
B
By inclusion and exclusion principle
= 
.
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