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In a certain game of archery the points in each round for the first,se

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stonecold
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In a certain game of archery the points in each round for the first,se [#permalink] New post   28 Mar 2016, 16:22
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In a certain game of archery the points in each round for the first,second,third and fourth position were 7,5,3,2 . No other points were given. Ross participated in several rounds in the competition and the product of his score was 21000. In How many Rounds Did he participate?
[1] 8
[2] 6
[3] 9
[4] 7
[5] Cannot be determined
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   29 Mar 2016, 06:30
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jpvemula wrote:
product of the scores is 21000
21000= 7*3*(5^3)*(2^3)
Since there are no other points other than 7,5,3,2 answer should be 8 rounds .


Here's your mistake
Who told you that Ross Got Points in every round he completed.
What if he got no points in 7 rounds ?

The correct answer is E

If you understand HIT that Kudos ..!!

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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   28 Mar 2016, 19:14
product of the scores is 21000
21000= 7*3*(5^3)*(2^3)
Since there are no other points other than 7,5,3,2 answer should be 8 rounds .
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   28 Mar 2016, 23:15
21000=7*5*2*5*2*5*2*3
Total 8 rounds


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In a certain game of archery the points in each round for the first,se [#permalink] New post   29 Mar 2016, 02:25
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I think this can be solved by prime factorization (because all numbers are primes):

21000/7 = 3000
3000/5 = 600
600/5 = 120
120/2 = 60
60/3 = 20
20/5 = 4
4/2 = 2
2

So we have 7*5*5*2*3*5*2*2 = 21000
So my answer would be 8.
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   29 Mar 2016, 06:31
ramyapilai wrote:
21000=7*5*2*5*2*5*2*3
Total 8 rounds


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Here's your mistake
Who told you that Ross Got Points in every round he completed.
What if he got no points in 7 rounds ?

The correct answer is E

If you understand HIT that Kudos ..!!

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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   29 Mar 2016, 17:06
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Kocket wrote:
I think this can be solved by prime factorization (because all numbers are primes):

21000/7 = 3000
3000/5 = 600
600/5 = 120
120/2 = 60
60/3 = 20
20/5 = 4
4/2 = 2
2

So we have 7*5*5*2*3*5*2*2 = 21000
So my answer would be 8.


you sure?
what if ross did not end by getting points in 10 rounds (say)
then the number of rounds he participated will be 18
so we can have numerous such examples
hence E
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In a certain game of archery the points in each round for the first,se [#permalink] New post   29 Mar 2016, 23:04
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Chiragjordan wrote:
Kocket wrote:
I think this can be solved by prime factorization (because all numbers are primes):

21000/7 = 3000
3000/5 = 600
600/5 = 120
120/2 = 60
60/3 = 20
20/5 = 4
4/2 = 2
2

So we have 7*5*5*2*3*5*2*2 = 21000
So my answer would be 8.


you sure?
what if ross did not end by getting points in 10 rounds (say)
then the number of rounds he participated will be 18
so we can have numerous such examples
hence E



The question says that the product of his points is 21000.
If he does not get points in one round he gets zero points for that round, right?
Then the product of his points would always be zero if he gets no points for one round.
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   30 Mar 2016, 05:11
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Kocket wrote:
Chiragjordan wrote:
Kocket wrote:
I think this can be solved by prime factorization (because all numbers are primes):

21000/7 = 3000
3000/5 = 600
600/5 = 120
120/2 = 60
60/3 = 20
20/5 = 4
4/2 = 2
2

So we have 7*5*5*2*3*5*2*2 = 21000
So my answer would be 8.


you sure?
what if ross did not end by getting points in 10 rounds (say)
then the number of rounds he participated will be 18
so we can have numerous such examples
hence E



The question says that the product of his points is 21000.
If he does not get points in one round he gets zero points for that round, right?
Then the product of his points would always be zero if he gets no points for one round.



Think again..
Getting a zero is very different from getting no score..
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   30 Mar 2016, 05:51
Chiragjordan wrote:
Kocket wrote:
The question says that the product of his points is 21000.
If he does not get points in one round he gets zero points for that round, right?
Then the product of his points would always be zero if he gets no points for one round.



Think again..
Getting a zero is very different from getting no score..



Okay if no score is different from getting zero it makes sense.
Thanks :)
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   30 Mar 2016, 05:51
i am still not able to understand why the correct answer is e option and not option a?
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   08 Aug 2016, 06:11
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So can 8 be the MINIMUM number of rounds he played??
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In a certain game of archery the points in each round for the first,se [#permalink] New post   08 Aug 2016, 06:38
sudhirgupta93 wrote:
So can 8 be the MINIMUM number of rounds he played??


Yes mate.
8 has to be the minimum number here.








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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   08 Aug 2016, 10:37
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rhine29388 wrote:
i am still not able to understand why the correct answer is e option and not option a?


Correct answer is E and not A because we are given that there won't be any points awarded for rounds other than 1st four.

Thus, it may happen that he played 100 rounds out of only 8 rounds were there in which he was awarded some points.
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   09 Oct 2022, 01:18
If he played more than 8 rounds, and didn't come in the top 4 in any of the extra rounds, the product of his scores should be 0 since he scored 0 points in some rounds.
Here, they have said Product=21000, so how did he play more than 8 rounds?
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Re: In a certain game of archery the points in each round for the first,se [#permalink] New post   22 Apr 2024, 20:33
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