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At 12:00 noon, the temperature in a certain storage room was 64. If th

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At 12:00 noon, the temperature in a certain storage room was 64. If th  [#permalink]

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New post 14 Oct 2019, 09:29
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

91% (00:49) correct 9% (02:23) wrong based on 22 sessions

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At 12:00 noon, the temperature in a certain storage room was 64. If th  [#permalink]

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New post 14 Oct 2019, 10:15
Bunuel wrote:
At 12:00 noon, the temperature in a certain storage room was 64. If the temperature in the storage room decreased at a constant rate of 2 per hour for the next 8 hours, what was the temperature in the storage room at 8:00 in the evening?

A. 2
B. 8
C. 16
D. 48
E. 54


Time difference between 12 PM and 8 PM= 8 hours
So, drop in temperature= 8*2=16
Thus, temperature at 8 PM=64-16=48

Therefore, the correct answer is option D.
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Re: At 12:00 noon, the temperature in a certain storage room was 64. If th  [#permalink]

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New post 14 Oct 2019, 11:02
Bunuel wrote:
At 12:00 noon, the temperature in a certain storage room was 64. If the temperature in the storage room decreased at a constant rate of 2 per hour for the next 8 hours, what was the temperature in the storage room at 8:00 in the evening?

A. 2
B. 8
C. 16
D. 48
E. 54


64 - 2*8 = 48 , Answer must be (D)
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Re: At 12:00 noon, the temperature in a certain storage room was 64. If th   [#permalink] 14 Oct 2019, 11:02
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