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In the equation above, k, r, s, t, and v represent positive numbers.
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05 May 2021, 03:09
05 May 2021, 03:09
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Question Stats:
95% (00:51) correct
5% (02:54) wrong based on 20 sessions
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\(n=\frac{k+\frac{r}{s}}{\frac{t}{v}}
\)
In the equation above, k, r, s, t, and v represent positive numbers. Multiplying which one of these numbers by 2 will reduce the value of \(n\) to \(\frac{1}{2}\) of its present value ?
(A) k
(B) r
(C) s
(D) t
(E) v
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
\)
In the equation above, k, r, s, t, and v represent positive numbers. Multiplying which one of these numbers by 2 will reduce the value of \(n\) to \(\frac{1}{2}\) of its present value ?
(A) k
(B) r
(C) s
(D) t
(E) v
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
In the equation above, k, r, s, t, and v represent positive numbers.
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05 May 2021, 22:06
05 May 2021, 22:06
2
Simplify the given equation by finding LCMs:
n = (k + r/s) / (t / v);
n = (ks + r) / (st / v);
n = \(\frac{vks + vr}{st}\);
The value of n will become 1/2 of it's original value if it is divided by 2. From the simplified equation it is clear that multiplying t by 2 will be equivalent to dividing n by 2. Hence answer choice D (t) is the answer.
Hit kudos if this reply helped!
n = (k + r/s) / (t / v);
n = (ks + r) / (st / v);
n = \(\frac{vks + vr}{st}\);
The value of n will become 1/2 of it's original value if it is divided by 2. From the simplified equation it is clear that multiplying t by 2 will be equivalent to dividing n by 2. Hence answer choice D (t) is the answer.
Hit kudos if this reply helped!
Re: In the equation above, k, r, s, t, and v represent positive numbers.
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06 May 2021, 01:49
06 May 2021, 01:49
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