Q: A box contains ten balls out of which 3
are red and rest blue. In how many ways
can a random sample of six balls be drawn
so that at most 2 red balls are included.
A.105
B.189
C.168
D.175
answer this question fast
Answers
Answered by
1
Answer:
A. 189 is a answer
Step-by-step explanation:
we are multiplied by step by step
Answered by
0
Answer:
(C)
Six balls can be selected in the following ways:
One red ball and 5 blue ball
Or
Two red balls and 4 blue balls.
Total number of ways:
= (3C1 × 7C5) + (3C2 × 7C4)
= 63 + 105
=168
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