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If the recommended weight w, in pounds, for a male is given in terms..

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broilerc
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If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   06 May 2016, 09:20
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If the recommended weight \(w\), in pounds, for a male is given in terms of his height \(h\), in inches, by the formula \(w= 4.5h-154\), how much greater is Eric's recommended weight than Tom's, according to this formula?

(1) Eric is 4 inches taller than Tom.

(2) According to the formula, Tom's recommended weight is 152 pounds.
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A
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chetan2u
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If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   06 May 2016, 09:45
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broilerc wrote:
If the recommended weight \(w\), in pounds, for a male is given in terms of his height \(h\), in inches, by the formula \(w= 4.5h-154\), how much greater is Eric's recommended weight than Tom's, according to this formula?

(1) Eric is 4 inches taller than Tom.

(2) According to the formula, Tom's recommended weight is 152 pounds.


The equation has two variables ..
let height and weight of Eric =\(h_e\)and \(w_e\)..
and those of Tom =\(h_t\)and \(w_t.\).
the two eqs now are ..
\(w_e= 4.5h_e-154\)..
\(w_t= 4.5h_t-154\)...
we are looking for\(w_e-w_t\)..
subtract the two equations..
\(w_e-w_t= 4.5(h_e-h_t)\)...
so we require either the individual heights OR the difference..

(1) Eric is 4 inches taller than Tom.
this gives us \(h_e-h_t\)
Suff

(2) According to the formula, Tom's recommended weight is 152 pounds.
Nothing about height
Insuff

A
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Kurtosis
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   06 May 2016, 09:38
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St1; Tom's recommended weight = 4.5t - 154
Eric's recommended weight = 4.5(t + 4) - 154
Eric exceeds Tom's weight by 4.5(t + 4) - 154 - 4.5t + 154 = 18
Sufficient

St2: Insufficient. We can find Tom's height using this statement but we do not have any information about Eric.

Answer: A
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kenslim
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Re: If the recommended weight w, in pounds, for a male is given in terms o [#permalink] New post   15 May 2018, 23:00
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Stem: w = 4.5h – 154
What is Eric's weight (EW) - Tom's weight (TW)

S1) E = Eric's height; T = Tom's height
E = T+4
Eric's Weight: 4.5E – 154 = 4.5(T+4) – 154
Tom's Weight: 4.5T – 154
EW - TW
(4.5(T+4) – 154) - (4.5T – 154)

Sufficient

S2) TW = 152
Nothing is given for Eric.
Not Sufficient

Answer: A
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   15 Jul 2016, 14:05
1) Use simple difference in height to calculate Weight via formula in question stem
2) Nothing about Eric or his height - insuff.
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Prasannathawait
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   12 Sep 2019, 08:44
Nice question.
It's an official GMAT exam pack 6 question.
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JadAsmar
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   28 Aug 2021, 10:53
Hello Bunuel

Please tag it as GMAT prep question
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DashingNightmare2
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   28 Aug 2021, 11:17
w=4.5h−154
Tom weight = 4.5h(tom)-154
Eric's weight =4.5h(eric) -154
Difference = 4.5( h(eric) - h(tom) )

(1) Eric is 4 inches taller than Tom
h(eric) - h(tom) is given. Sufficient

(2) According to the formula, Tom's recommended weight is 152 pounds.
There is no way to find Erics weight Insufficient

Hence A
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AnkurGMAT20
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   25 Jan 2022, 07:34
Bunuel, please tag this under GMAT Prep. This one is asked in Official Mock.

Thanks
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   25 Jan 2022, 07:48
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AnkurGMAT20 wrote:
Bunuel, please tag this under GMAT Prep. This one is asked in Official Mock.

Thanks



Thanks
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink] New post   18 Feb 2023, 20:56
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Re: If the recommended weight w, in pounds, for a male is given in terms.. [#permalink]
18 Feb 2023, 20:56
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