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Re: If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
TarunKumar1234 wrote:
Given, 6 Drums---5 Buildings---3 days
1 Drum----1 Building--- (3/6)*5 days
10 drums--2 Buildings---(3/6)*5*(10/2) days = 25/2 = 12.5

So, I think C. :)


Hi Tarun,
I am not getting your solution. could you please explain in detail ?
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Re: If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
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MHIKER wrote:
Bunuel wrote:
If 6 drums of oil will heat 5 identical buildings for 3 days, how many days will 10 drums of oil last when heating 2 of the same buildings?

(A) 10
(B) 12
(C) 12.5
(D) 14.5
(E) 18


Applying work rate formula: W=RT

\(\frac{5*3}{6}=\frac{2*x}{10}=12.5\) [x are the days]

The answer is \(C\)

Hi Mhiker, why are you dividing by 6 and 10 please explain ?
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If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
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Given

    • 6 drums of oil will heat 5 identical buildings for 3 days


To Find

    • The number of days that 10 drums of oil last when heating 2 of the same buildings.


Approach and Working Out


    • 6 drums of oil will heat 5 buildings for 3 days.
    • We can 6 drums will heat 5 × 3 building once.
      o So, 6 drums will heat 15 buildings.
      o 1 drum will heat \(\frac{15}{6}\) buildings
      o 10 drums will heat \(\frac{{15 × 10}}{6} \)buildings once.
      o So, 2 building for \(\frac{{15 × 10 }}{ {6 × 2}} \)days
         12.5 days.


Correct Answer: Option C
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Re: If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
EgmatQuantExpert wrote:
Given

    • 6 drums of oil will heat 5 identical buildings for 3 days


To Find

    • The number of days that 10 drums of oil last when heating 2 of the same buildings.


Approach and Working Out


    • 6 drums of oil will heat 5 buildings for 3 days.
    • We can 6 drums will heat 5 × 3 building once.
      o So, 6 drums will heat 15 buildings.
      o 1 drum will heat \(\frac{15}{6}\) buildings
      o 10 drums will heat \(\frac{{15 × 10}}{6} \)buildings once.
      o So, 2 building for \(\frac{{15 × 10 }}{ {6 × 2}} \)days
         12.5 days.


Correct Answer: Option C


I am not able to get why are we dividing by 2 rest explaination i understood
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If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
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abhinavsodha800 wrote:
MHIKER wrote:
Bunuel wrote:
If 6 drums of oil will heat 5 identical buildings for 3 days, how many days will 10 drums of oil last when heating 2 of the same buildings?

(A) 10
(B) 12
(C) 12.5
(D) 14.5
(E) 18


Applying work rate formula: W=RT

\(\frac{5*3}{6}=\frac{2*x}{10}=12.5\) [x are the days]

The answer is \(C\)

Hi Mhiker, why are you dividing by 6 and 10 please explain ?


Hello, abhinavsodha800

Actually, what I did, I calculate the rate of the current event and then equate it with the expected event. 5

6 drums heat 5 building in 3 days
6 drums will heat 1 building for more days \(=5*3\)
1 drum will heat 1 building for less days \(=\frac{5*3}{6}\) [This is the rate we need]
Now,
\(\frac{5*3}{6}=\frac{2*x}{10} \)[We need to determine the days, which will be heated by 10 drums for 2 buildings, so we are dividing the right-hand side by 10. abhinavsodha800]

\(x=12.5\)

Feel free to question.
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Re: If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
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Re: If 6 drums of oil will heat 5 identical buildings for 3 days, how many [#permalink]
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