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Life expectancy is defined by the formula 2SB/G, where S = shoe size,

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Bunuel
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Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   03 Jul 2015, 03:04
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Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

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E
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   03 Jul 2015, 03:38
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Bunuel wrote:
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

Kudos for a correct solution.


Solution -

Given that, G = 2B and Life expectancy(L) = 50

L=2SB/G -> 50 = 2SB/2B --> S=50.
ANS E
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Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   03 Jul 2015, 10:14
The question tests how well you understand the relationships to transcribe them. Once done, the equation actually reduces to the answer. Plug in answer choices to confirm.
\(50 = \frac{2*s*B}{2B} = 50\)

E. 50

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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   03 Jul 2015, 11:22
2SB/2B = 50

Hence S 50 ..
Answer is E
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   03 Jul 2015, 19:40
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Bunuel wrote:
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

Kudos for a correct solution.


Given: Life expectancy, L = 2SB/G

S=?

Rearranging the given expression for calculating S

i.e. S = LG/2B = (50)*(2*B) / 2*B [Because GMAT Score, G = (2*B)]

i.e. S = 50

Answer: Option E
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   04 Jul 2015, 10:05
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Bunuel wrote:
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

Kudos for a correct solution.


G=2B(given)
Life expectancy=2SB/G=2SB/2B=S
S=50
Answer E
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   04 Jul 2015, 11:17
E is correct answer

G = 2B and Life expectancy(L) = 50

L=2SB/G -> 50 = 2SB/2B --> S=50
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   06 Jul 2015, 06:32
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Bunuel wrote:
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

Kudos for a correct solution.


MANHATTAN GMAT OFFICIAL SOLUTION:

Substitute 2B for G in the formula. Note that the term 2B appears in both the numerator and denominator, so they cancel out.

2SB/2B = 50
S = 50.

Answer: E.
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   17 Nov 2019, 20:21
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Bunuel wrote:
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 50, what is his shoe size?

A. 25
B. 30
C. 35
D. 40
E. 50

Kudos for a correct solution.



Since G = 2B, we can create the equation:

50 = 2SB/(2B)

50 = S

Answer: E
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Re: Life expectancy is defined by the formula 2SB/G, where S = shoe size, [#permalink] New post   18 Oct 2022, 08:53
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