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6 balls are marked with numbers 1 to 6. If two balls are picked out
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11 Nov 2024, 00:49
11 Nov 2024, 00:49
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60% (01:34) wrong based on 5 sessions
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6 balls are marked with numbers 1 to 6. If two balls are picked out of these 6 balls, what is the probability that the sum of the numbers on the balls is 8?
A. 1/15
B. 2/15
C. 1/5
D. 4/15
E. 1/3
A. 1/15
B. 2/15
C. 1/5
D. 4/15
E. 1/3
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Re: 6 balls are marked with numbers 1 to 6. If two balls are picked out
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11 Nov 2024, 12:40
11 Nov 2024, 12:40
Carcass, can you please share a solution to this question?
Re: 6 balls are marked with numbers 1 to 6. If two balls are picked out
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11 Nov 2024, 13:43
11 Nov 2024, 13:43
Expert Reply
Please see our theory about probability.
This a very basic problem where you do not even need to take the total way two balls can be picked up even though I will show nonetheless
6 balls and two picked up So the total ways are
6*5/2=15
Only two combinations are possible to have 8 {2,6} and {3,5}
So the probability is 2/15 or B
But even if you take only the two way to add up to 8 which are 2 the only answer that contains 2 is B
I hope this helps
This a very basic problem where you do not even need to take the total way two balls can be picked up even though I will show nonetheless
6 balls and two picked up So the total ways are
6*5/2=15
Only two combinations are possible to have 8 {2,6} and {3,5}
So the probability is 2/15 or B
But even if you take only the two way to add up to 8 which are 2 the only answer that contains 2 is B
I hope this helps
