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gmatcrasher2010
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Stuck on this simple problem
Source: Beat The GMAT — Problem Solving |
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vineetbatra
- Master | Next Rank: 500 Posts
- Posts: 355
- Thanked: 2 times
I didn't find it simple man, but I would go with 6. M =8, N I couldnt figure, I guessed it should be closer to 0 but less. Between 5 and 6, I pick 5, but have no clue what is N.
Hi,
I think the answer should be m+n=5
It's a simple addition grid which gives equations as follows:
4+x=1 => x=-3
4+y=-5 => y=-9
e+x=7 => e=10
e+y=n => n =1
e+z=10 => z=0
and 4+z=m => m=4
=> m+n=4+1=5
You can cross check the logic on other addition combinations i.e. check if LHS=RHS
Thanks,
Anish
I think the answer should be m+n=5
It's a simple addition grid which gives equations as follows:
4+x=1 => x=-3
4+y=-5 => y=-9
e+x=7 => e=10
e+y=n => n =1
e+z=10 => z=0
and 4+z=m => m=4
=> m+n=4+1=5
You can cross check the logic on other addition combinations i.e. check if LHS=RHS
Thanks,
Anish
I think Answer is 5.
Explanation:
x+4=1 therefore x=-3
x+e=7 therefore e=10
z+e=10 therefore z=0
z+4=m therefore m=4
y+4=-5 therefore y=-9
y+e=n therefore n= 1
and m+n=4+1=5
What is the OA?
Explanation:
x+4=1 therefore x=-3
x+e=7 therefore e=10
z+e=10 therefore z=0
z+4=m therefore m=4
y+4=-5 therefore y=-9
y+e=n therefore n= 1
and m+n=4+1=5
What is the OA?
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vineetbatra
- Master | Next Rank: 500 Posts
- Posts: 355
- Thanked: 2 times
Guys, can you please tell how did you know that 4+x=1, the way I was moving is 1 + -5 + m = 4. But you did a cross section addition.
My question is how did you know that you had to do a cross section addition and not the way I mentioned
My question is how did you know that you had to do a cross section addition and not the way I mentioned
In these type of questions, we look at the operator that is "+" in this case. Now, add the vertical value and the horizontal value as shown in the image. So, 4 + x = 1, 4 + y = -5, 4 + z = m and so on.vineetbatra wrote:Guys, can you please tell how did you know that 4+x=1, the way I was moving is 1 + -5 + m = 4. But you did a cross section addition.
My question is how did you know that you had to do a cross section addition and not the way I mentioned
The correct answer is 5.
I hope that helps.
Rahul Lakhani
Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
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Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
1-800-566-4043 (USA)
+91-99201 32411 (India)
You guys are genius.
Yes the correct answer is 5.
But i dont understand what kind of concept we use here. I was trying to solve with Matrix to nowhere.
Once again, thank you all.
Yes the correct answer is 5.
But i dont understand what kind of concept we use here. I was trying to solve with Matrix to nowhere.
Once again, thank you all.
