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In a scientific experiment, the population of a strain of bacteria was
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10 Oct 2023, 00:58
10 Oct 2023, 00:58
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33% (03:19) wrong based on 6 sessions
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In a scientific experiment, the population of a strain of bacteria was measured to be 64 × 104 at 12:00 noon. If the population of the colony doubles every 2 hours, the product of the populations at which of the following two times would be equal to the square of the bacteria population at 8:00 pm?
Indicate all the correct pairs of times.
(A) 4:00 pm and 6:00 pm
(B) 6:00 pm and 10:00 pm
(C) 4:00 pm and 12:00 midnight
Indicate all the correct pairs of times.
(A) 4:00 pm and 6:00 pm
(B) 6:00 pm and 10:00 pm
(C) 4:00 pm and 12:00 midnight
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Re: In a scientific experiment, the population of a strain of bacteria was
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11 Oct 2023, 23:25
11 Oct 2023, 23:25
1
64*104 =6656 at 12noon
at 8pm it will double every 2hrs 12noon - 8pm =8hrs/2 =4
6656*(2)^4 this squares is equal to the population of other two times =(6656)^2 *(2^4)^2 =6656^2 * 2^8
A: 4pm & 6pm
(66568*2^2) (6656*2^3) is not equal to 6656^2 * 2^8
B:6pm & 10pm
(6656*2^3) (66568*2^5) == 6656^2 * 2^8
C:4pm & 12pm
(6656*2^2) (6656*2^6)== 6656^2 * 2^8
Ans B&C
at 8pm it will double every 2hrs 12noon - 8pm =8hrs/2 =4
6656*(2)^4 this squares is equal to the population of other two times =(6656)^2 *(2^4)^2 =6656^2 * 2^8
A: 4pm & 6pm
(66568*2^2) (6656*2^3) is not equal to 6656^2 * 2^8
B:6pm & 10pm
(6656*2^3) (66568*2^5) == 6656^2 * 2^8
C:4pm & 12pm
(6656*2^2) (6656*2^6)== 6656^2 * 2^8
Ans B&C
gmatclubot
Re: In a scientific experiment, the population of a strain of bacteria was [#permalink]
11 Oct 2023, 23:25
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