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# Due to a malfunctioning Heisenberg compensator in the transporter, Adr

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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
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Now the real question: how many Star Trek references in the stem?

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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
Kinshook Hi! How did you do this? Work done by Adriella till 12:30 = .5/7 = 1/14

0.5/7 = 50/70 = 5/7, right?
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
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AbhaGanu

I wanted to calculate work done in .5 hours (30 minutes) by Adriella.
Work done by Adriella in 1 hour = 1/7
Work done by Adriella between 12:00 and 12:30 hours (30 minutes) = .5/7 = 1/14

AbhaGanu wrote:
Kinshook Hi! How did you do this? Work done by Adriella till 12:30 = .5/7 = 1/14

0.5/7 = 50/70 = 5/7, right?
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
Kinshook Thank yoU! But how did you get 14?
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
.5/7 = (1/2)/7 = 1/14

AbhaGanu wrote:
Kinshook Thank yoU! But how did you get 14?
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
Due to a malfunctioning Heisenberg compensator in the transporter, Adriella was stranded in an Ardanian mine shaft. At 12:00, she uses her Type 1 phaser to cut through the zenite ore to open air, which will take 7 hours. At 12:30, Desmina, situated directly on the other side of the mineshaft, uses her Type 2 phaser to cut through the ore directly towards Adriella. If Desmina’s Type 2 phaser would have taken 6 hours to reach Adriella’s original location, what time did the two of them meet?

(A) 1:30
(B) 3:00
(C) 3:30
(D) 4:30
(E) 5:00

This is a relative speed problem which could be solved quicker with the application of ratios and how they inter relate with Rate & Time

Adri starts at 12 pm - It takes her 7 hrs to go the other side T = 7
Des starts at 12:30 - It takes her 6 Hrs to go the other side T = 6

Ratio of time of Adri : Desmi = 7 : 6
Ratio of rate of Desmi : Adri = 6 : 7
(In case of 2 bodies Ratio of Rate is inverse of ratio of time)
Lets say distance = 42 (LCM of 6 & 7)
Rate of Desmi = 7mi/hr
Combined Rate = 13 ( travelling in opposite directions)
Distance travelled by Adri in 30 mins . She starts 30 mins before Desmi = 6/2 = 3 Miles
Total Distance = 42 - 3 = 39 Miles
Time = 39/13 = 3 hrs . Time they both meet is 12:30 + 3hrs = 3:30 pm
c
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
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Re: Due to a malfunctioning Heisenberg compensator in the transporter, Adr [#permalink]
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