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# At the rate of l liters per s seconds, how many kiloliters (1000 liter

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Math Expert
Joined: 02 Sep 2009
Posts: 52161
At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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07 Sep 2017, 22:32
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35% (medium)

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74% (02:01) correct 26% (02:18) wrong based on 186 sessions

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At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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07 Sep 2017, 22:39
1
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

L litre = S Sec
L/S litre = 1 Sec
L/S * 60 Litre = 1 min
L/S * 60 * 60 Litres = 1 hour
3600L/1000S Kilo Litres = 1 hour
3600LX/1000S Kilo Litres = X hours

A
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At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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07 Sep 2017, 23:16
1 hr= 60 min, 1 min=60 sec
Therefore 1 hr=60*60=3600 sec

Rate is L liters per S seconds
therefore Rate in liters per hour is 3600 L/hr
And finally Rate in kilo liters per hour is 3600 KL/1000 hr

Therefore in x hours, 3600xL/1000s blood will be pumped. hence Option A.

Kudos if it helps.
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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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11 Sep 2017, 18:47
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

L litre = S seconds
In Xhrs there would 3600*X seconds

So volume pumped = 3600*X*L /S litres

In kilolitres 3,600LX/(1,000S)

Ans:A
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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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12 Sep 2017, 02:41
L litres per S sec ---> L/S = 1 sec
1 hr = 3600sec
1 kilolitres = 1000L

In S Sec ---> L litres blood pumped
In X hours(3600S) ---> 3600LX blood pumped
In kilolitres ----> 3600LX/1000S

Option A
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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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15 Sep 2017, 09:10
1
1
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

Let’s convert the rate to kiloliters per second.

L liters = L/1000 kiloleters. So, our new rate is:

(L/1000)/S = L/(1000S)

Now we need to determine how much blood is pumped in X hours, or 3600X seconds.

L/(1000S) * 3600X = 3600XL/(1000S)

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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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24 Dec 2017, 23:36
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

Bunuel how would you solve this question?
Please explain in simplified form. This one is confusing.
Math Expert
Joined: 02 Sep 2009
Posts: 52161
Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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25 Dec 2017, 01:27
1
Buttercup3 wrote:
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

Bunuel how would you solve this question?
Please explain in simplified form. This one is confusing.

1000 liters = 1 kiloliter, thus L liters = L/1,000 kiloliter

The rate of L liters per S seconds = $$Rate = \frac{Job \ done}{Time} = \frac{(\frac{L}{1,000})}{S}= \frac{L}{1,000S}$$ liters per second.

Since, there are 3,600 seconds in one hour, then the rate in liters per hour would be $$\frac{3,600L}{1,000S}$$ liters per hour.

$$Job \ done = Rate*Time = \frac{3,600L}{1,000S}*X = \frac{3,600LX}{1,000S}$$.

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Math Expert
Joined: 02 Sep 2009
Posts: 52161
Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter  [#permalink]

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25 Dec 2017, 01:30
Buttercup3 wrote:
Bunuel wrote:
At the rate of L liters per S seconds, how many kiloliters (1000 liters = 1 kiloliter) of blood does the heart pump in X hours?

A. 3,600LX/(1,000S)

B. 1,000LX/(3,600S)

C. 3,600,000XS/L

D. 3,600,000LS/X

E. 3,600,000LXS/

Bunuel how would you solve this question?
Please explain in simplified form. This one is confusing.

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Re: At the rate of l liters per s seconds, how many kiloliters (1000 liter &nbs [#permalink] 25 Dec 2017, 01:30
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