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The total expenses of organizing a party has a fixed expense of $250 a
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24 Oct 2023, 02:21
24 Oct 2023, 02:21
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The total expenses of organizing a party has a fixed expense of $250 as the rent of the place where the party is to be organized and a variable expense depending on the number of guests attending the party. For 10 guests the total expense was estimated to be $650. What is the estimated total expense for 20 guests?
(A) $800
(B) $900
(C) $1,050
(D) $1,250
(E) $1,300
(A) $800
(B) $900
(C) $1,050
(D) $1,250
(E) $1,300
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Re: The total expenses of organizing a party has a fixed expense of $250 a
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24 Oct 2023, 08:56
24 Oct 2023, 08:56
1
For 10 guests the total expenses are 650 out of which 250 is fixed so variable expenses are 650-250=400
Now since variable expenses remain same for each guest, per head expense is (400/10)=40
For 20 guests the variable expenses become 40*20=800
And we have to add back the fixed expenses which are incurred in any case, so total expenses become 800+250=1050 which is Option C.
Now since variable expenses remain same for each guest, per head expense is (400/10)=40
For 20 guests the variable expenses become 40*20=800
And we have to add back the fixed expenses which are incurred in any case, so total expenses become 800+250=1050 which is Option C.
gmatclubot
Re: The total expenses of organizing a party has a fixed expense of $250 a [#permalink]
24 Oct 2023, 08:56
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