Permutations And Combinations Question 176
Question: A person predicts the outcome of 20 cricket matches of his home team. Each match can result in either a win, loss, or tie for the home team. Total number of ways in which he can make the predictions so that exactly 10 predictions are correct is equal to
Options:
A) $ ^{20}C _{10}\times 2^{10} $
B) $ ^{20}C _{10}\times 30^{20} $
C) $ ^{20}C _{10}\times 30^{10} $
D) $ ^{20}C _{10}\times 2^{20} $
Correct Answer: A
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Answer:
Solution:
BETA
