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# If Jake loses 8 pounds, he will weigh twice as much as his

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Intern
Joined: 20 May 2008
Posts: 7
If Jake loses 8 pounds, he will weigh twice as much as his  [#permalink]

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30 May 2008, 09:56
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Difficulty:

5% (low)

Question Stats:

98% (01:42) correct 2% (02:47) wrong based on 274 sessions

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If Jake loses 8 pounds, he will weigh twice as much as his sister. Together they now weigh 278 pounds. What is Jake’s present weight, in pounds?

(A) 131
(B) 135
(C) 139
(D) 147
(E) 188

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-jake-lose ... 43752.html
Manager
Joined: 28 May 2008
Posts: 92
Re: If Jake loses 8 pounds, he will weigh twice as much as his  [#permalink]

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30 May 2008, 10:08
2
sportypk wrote:
If Jake loses 8 pounds, he will weigh twice as much as his
sister. Together they now weigh 278 pounds. What is Jake’s
present weight, in pounds?
(A) 131
(B) 135
(C) 139
(D) 147
(E) 188

the OA is 188...could anyone explain how?

Heyyy
Lets say J is the weight of Jack and S is the wt of his sister.
If he loses 8 pounds, he s twice as heavy as his sister.
J-8=2*S
Also, together they weight 278 pounds
J+S=278

solvong the 2 equation ,we get J=188 pounds !

Cheers !
Manager
Joined: 20 Mar 2008
Posts: 143
Location: USA
Re: If Jake loses 8 pounds, he will weigh twice as much as his  [#permalink]

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30 May 2008, 10:14
1
Consider Sister weight Now as x
Jakes weight (2times +8) = 2x+8

(2x+8)+(x) =278
x=90

Jake's weight is ....188
Intern
Joined: 03 Jan 2013
Posts: 3
Re: If Jake loses 8 pounds, he will weigh twice as much as his  [#permalink]

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14 Jan 2013, 13:03
sportypk wrote:
If Jake loses 8 pounds, he will weigh twice as much as his
sister. Together they now weigh 278 pounds. What is Jake’s
present weight, in pounds?
(A) 131
(B) 135
(C) 139
(D) 147
(E) 188

the OA is 188...could anyone explain how?

My solution is:
(278-8)/3 = 90
90*2+8= 188
Math Expert
Joined: 02 Sep 2009
Posts: 49970
Re: If Jake loses 8 pounds, he will weigh twice as much as his  [#permalink]

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12 Oct 2017, 23:30
sportypk wrote:
If Jake loses 8 pounds, he will weigh twice as much as his sister. Together they now weigh 278 pounds. What is Jake’s present weight, in pounds?

(A) 131
(B) 135
(C) 139
(D) 147
(E) 188

Let J be Jake's present weight and S be his sister's weight, then we can construct two linear equations:
J=2S+8;
J+S=278.

Subtract one from another: S=278-2S-8 --> S=90 --> J=188.

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-jake-lose ... 43752.html
_________________
Re: If Jake loses 8 pounds, he will weigh twice as much as his &nbs [#permalink] 12 Oct 2017, 23:30
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