A hunting lodge has enough fuel to keep 20 rooms heated for fourteen days. If the lodge decides to save fuel by turning off the heat in 5 unoccupied rooms, and each room requires the same amount of fuel to heat it, how many extra FULL days will the fuel supply last?

Question

anonymous · Answer

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anonymous · Answer

how many days will the heat be turned off for? 14 days?

welshfella · Answer

this is a proportion problem 
they have only to heat 20-5 = 15 rooms

so total days  they can heat for = ( 20/15)  * 14  
Round the answer down  to get the number of FULL days.

subtract 14  from this to get number of extra full days.

anonymous · Answer

i dont get it

anonymous · Answer

why multiply 20 times 14