Let Leo's current weight be x and the brother's weight be y
Currently acc to the question,
x+y = 340
If Leo gains 10 pounds,
X+10 = y+50%(y)
X+10=y+y/2
X=3y/2 - 10
Substituting the value of x in the original eqn we get,
y = 140, which gives
X= 200
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Weight gain
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Ganesh hatwar
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i usually pick the numbers from options from D or EDanaJ wrote:Source: Veritas Prep
If Leo gains 10 pounds, he will weigh 50% more than his brother. Currently, their combined weight is 340 pounds. What is Leo's current weight?
A) 140
B) 160
C) 170
D) 190
E) 200
L + B = 340
choose option E
200+140 = 340
+10 gain
210-140 = 70
50 of 140 = 50 / 100 * 140 = 70
E
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surmilsehgal
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David@VeritasPrep
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I would say below the 50th percentile. It is a word problem, but it seems like a pair of fairly straight-forward equations that resolve pretty nicely. Just about everyone here has gotten the correct answer.
Now do keep in mind that being at a lower level makes this exactly the kind of problem you have to get right. You may only see a few questions that are this straightforward but it is important to get them right.
Now do keep in mind that being at a lower level makes this exactly the kind of problem you have to get right. You may only see a few questions that are this straightforward but it is important to get them right.
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Brent@GMATPrepNow
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We can also solve the question using only 1 variable.DanaJ wrote:Source: Veritas Prep
If Leo gains 10 pounds, he will weigh 50% more than his brother. Currently, their combined weight is 340 pounds. What is Leo's current weight?
A) 140
B) 160
C) 170
D) 190
E) 200
Let L = Leo's current weight.
Let 340-L = Brother's weight.
Aside: If Leo's weight is L, and their combined weight is 340, then the brother's weight must be 340-L
If Leo gains 10 pounds, he will weigh 50% more than his brother.
In other words, Leo's new weight will equal his brother's current weight plus 50% (0.5 times) more.
In other words, Leo's new weight will be 1.5 times his brother's current weight
So, we can write: L+10 = 1.5(340-L)
Solve: L+10 = 510 - 1.5L
2.5L+10 = 510
2.5L = 500
L=200 = E
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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rajeshsinghgmat
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after 10 pound gain there total weight is 350
if his brother is "x" kg then leo is 1.5*x
1.5x + x = 350
2.5 x = 350
x = 140
So current weight of LEO = 340 - 140 = 200 (340 - 140 since weight of his brother remains the same)
SO correct ans "E"
if his brother is "x" kg then leo is 1.5*x
1.5x + x = 350
2.5 x = 350
x = 140
So current weight of LEO = 340 - 140 = 200 (340 - 140 since weight of his brother remains the same)
SO correct ans "E"
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prernamalhotra
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prernamalhotra
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prernamalhotra
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