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# In a certain year the price of gasoline rose by 20% during January, fe

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Math Expert
Joined: 02 Sep 2009
Posts: 54375
In a certain year the price of gasoline rose by 20% during January, fe  [#permalink]

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28 Mar 2019, 23:40
00:00

Difficulty:

35% (medium)

Question Stats:

77% (01:54) correct 23% (03:33) wrong based on 13 sessions

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In a certain year the price of gasoline rose by 20% during January, fell by 20% during February, rose by 25% during March, and fell by x% during April. The price of gasoline at the end of April was the same as it had been at the beginning of January. To the nearest integer, what is x?

(A) 12
(B) 17
(C) 20
(D) 25
(E) 35

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Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: In a certain year the price of gasoline rose by 20% during January, fe  [#permalink]

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29 Mar 2019, 03:04
Bunuel wrote:
In a certain year the price of gasoline rose by 20% during January, fell by 20% during February, rose by 25% during March, and fell by x% during April. The price of gasoline at the end of April was the same as it had been at the beginning of January. To the nearest integer, what is x?

(A) 12
(B) 17
(C) 20
(D) 25
(E) 35

price variation ; let price be 100
so 100*1.2*.8*1.25 = 120 april begining price
so price fell to original 100 ; % drop ; 100/120 = 5/6 ~83.33 % ; 100-83.33= ~ 17
IMO B
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Re: In a certain year the price of gasoline rose by 20% during January, fe   [#permalink] 29 Mar 2019, 03:04
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