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# A computer can perform 1,000,000 calculations per second. At this rate

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Director
Joined: 10 Oct 2005
Posts: 538
A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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Updated on: 21 Sep 2019, 14:47
1
17
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Difficulty:

35% (medium)

Question Stats:

68% (01:36) correct 32% (01:54) wrong based on 365 sessions

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A computer can perform 1,000,000 calculations per second. At this rate, how many hours will it take this computer to perform the 3.6*10^11 calculations required to solve a certain problem?

A. 60
B. 100
C. 600
D. 1,000
E. 6,000

PS83502.01

Originally posted by Yurik79 on 19 Jun 2006, 10:24.
Last edited by Bunuel on 21 Sep 2019, 14:47, edited 2 times in total.
Renamed the topic, edited the question and added the OA.
VP
Joined: 15 Jun 2006
Posts: 1106
Schools: Chicago Booth
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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19 Jun 2006, 10:38
B) 100
1000000 is 10^6, therefore we have the speed of 10^6 per second or 3600x10^6 = 3.6x10^9 per hour. Now, we need to make 10^2 or 100 times more calculations, therefore it will take 100 hours.
Director
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Posts: 897
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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19 Jun 2006, 11:12
B. (3.6 x 10^11)/10^6 = 36 x 10^4 seconds = 100 hours
Director
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Posts: 922
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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19 Jun 2006, 11:41
B) 100

(3.6 x 10^11)/(60x60x10^6)
= 10^4/100 = 100 hours
Senior Manager
Joined: 07 Jun 2006
Posts: 480
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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19 Jun 2006, 12:26
Yurik79 wrote:
A computer can perform 1,000,000 calculations per second.At this rate, how many hours will it take this computer to perform 3.6x10^11 calculations required to solve a certain problem?
A)60
B)100
C)600
D)1000
E)6000

36*10^10/10^6 = 36*10^4/(36*10^2) = 100 hours
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Location: Sunnyvale, CA
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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19 Jun 2006, 12:47
(B)

total time in secs = 3.6 * 10^11/10^6 = 3.6 * 10^5 secs
= 3.6 * 10^5/3600 hrs = 100 hrs
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Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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25 Jul 2008, 12:41
djdela wrote:
A computer can perform 1,000,000 calculations per second. At this rate , how many hours will it take this computer to perform the 3.6 x 10^11 calculations required to solve a certain problem.

a)60
b) 100
c) 600
d) 1,000
e) 6000

B

1 x 10^6 calc/sec = 1 x 10^6 calc/sec * 60 sec/min * 60 min/hr = 1 x 10^6 calc/sec * 3600 sec/hr = 1 x 10^6 calc/sec * 3.6 x 10^3 sec/hr = 3.6 x 10^9 calc/hr

3.6 x 10^11 calc / 3.6 x 10^9 calc/hr = 10^2 hr = 100 hr
VP
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Location: New York
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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25 Jul 2008, 12:53
djdela wrote:
A computer can perform 1,000,000 calculations per second. At this rate , how many hours will it take this computer to perform the 3.6 x 10^11 calculations required to solve a certain problem.

a)60
b) 100
c) 600
d) 1,000
e) 6000

(3.6 x 10^11 )/ (10^5) = 3.6 * 10 ^5 sec
= (3600 * 10^2 ) /3600 hrs
= 100 hrs

B
Manager
Joined: 30 Aug 2009
Posts: 217
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Concentration: General Management
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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15 Oct 2010, 15:48
1
rtaha2412 wrote:
Thanks for the help team!

Question

A computer can perform 1,000,000 calculations per second. At this rate, how many HOURS will it take this computer to perform the$$3.6 x 10^11$$ calculations required to solve a problem?

a 60
b 100
c 600
d 1000
e 6000

b. 100
per hour the computer performs $$3600 X 10^6$$ calculations which is = $$3.6 X 10^9$$
So time taken to perform $$3.6 X 10^11$$ calculations = $$3.6 X 10^11$$/$$3.6 X 10^9$$ = 100hrs
Intern
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Posts: 29
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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09 Jun 2015, 14:35
Because the computer can calculate 1,000,000 calculations per second OR 3600,000,000 (3600*1,000,000) per hour, which is similar to 3.6*10^9.
The question states a problem of the magnitude 3.6^11

11-9 = 2, therefore 10^2 = 100
SVP
Joined: 06 Nov 2014
Posts: 1870
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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10 Jun 2015, 02:17
1
A computer can perform 1,000,000 calculations per second. At this rate, how many hours will it take this computer to perform the 3.6*10^11 calculations required to solve a certain problem?

A. 60
B. 100
C. 600
D. 1,000
E. 6,000

Always read carefully. It could be easy to read quickly and miss that the rate is given in seconds but the answer choices are given in hours. The first step is to convert the rate into hours. This will make the calculations easier.
1000000 calculations = 1 x 10^6 calculations
The rate is 3.6 x 10^9 calculations per hour.
3.6 * 10^9 calculations per hour= 3.6 * 10^11 calculations per x hours
(3.6 *10^9 calculations per hour) ÷ (3.6 * 10^11 calculations) = x hours
x hours =
10^2 = 100
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Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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18 Oct 2016, 10:20
100.

Here's the calculation you should have derived:

(3.6 x 10^11 calc) x (1sec/10^6) x (1min/60sec) x (1hr/60min)
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Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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08 May 2017, 10:59
Yurik79 wrote:
A computer can perform 1,000,000 calculations per second. At this rate, how many hours will it take this computer to perform the 3.6*10^11 calculations required to solve a certain problem?

A. 60
B. 100
C. 600
D. 1,000
E. 6,000

Computer can perform = 10^6 calculations /sec
So for 3.6 x 10^11 calculations it will require 360000 seconds for computing.

i.e., 360000 seconds = 360000/ (60 x 60) hours = 100 hours.
Director
Joined: 18 Dec 2017
Posts: 823
Location: United States (KS)
Re: A computer can perform 1,000,000 calculations per second. At this rate  [#permalink]

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20 Nov 2019, 18:52
Yurik79 wrote:
A computer can perform 1,000,000 calculations per second. At this rate, how many hours will it take this computer to perform the 3.6*10^11 calculations required to solve a certain problem?

A. 60
B. 100
C. 600
D. 1,000
E. 6,000

PS83502.01

1 million (6 zeros) per second.

We need to perform 3.6*(10^11). Which is 36*10^10. Let's take out the million (6 zeros so we are left with 4 zeros) 36,0000 Millions

We need number of hours so let's divide by 3600. (60minutes*60seconds)

360000/3600=100

Hence B.

Note: Just play with zeros carefully that's it
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Re: A computer can perform 1,000,000 calculations per second. At this rate   [#permalink] 20 Nov 2019, 18:52
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