If L = (a - b) - c and R = a - (b - c), then L - R =

Question

If  L = (a - b)- c  and  R = a - (b - c) , then  L - R =

(A) 2b

(B) 2c

(C) 0

(D) -2b

(E) -2c

FillFM · Answer

L = a - b - c
R = a - b + c
-R = -a + b - c

Hence, L - R = a - b - c - a + b - c = -2c

Option E

Neerajsharma1981 · Answer

L-R= a-b-c-a+b-c=-2c

So correct answer is option E.

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sudarshan22 · Answer

L = (a - b)- c = a - b - c
R = a - (b - c) = a - b + c

L - R = a - b - c - (a - b + c) = a - b - c - a + b - c = -2c

Hence,   E  .

Abhishek009 · Answer

L = a - b - c

R = a - b + c

So,  L - R = (a - b - c ) - ( a - b + c )

Or,  L - R = a - b - c - a + b - c

Or,  L - R = - 2c , Answer must be (E)

abhishekdadarwal2009 · Answer

L=a−b−c

R=a−b+c

So, 
L−R=(a−b−c)−(a−b+c)

Or, 
L−R=a−b−c−a+b−c

Or, 
L−R=−2c
Answer must be (E)

Noshad · Answer

Given that, 
L=(a-b)-c or a-b+c
R=a-(b-c) or a-b+c
So L-R = 0
because both value are same

sakshamchhabra · Answer

L=(a-b)-c 
we can write this as a-b-c ( removing the bracket won't alter the sign)

R=a-(b-c) 
we can write this as a-b+c

L-R= a-b-c-(a-b+c)
which equals : a-b-c-a+b-c

so we get : -2C

vaibhav3112 · Answer

L-R=a-b-c-a+b-c
i.e. -2c

EgmatQuantExpert · Answer

Solution

Given:  
 • L = (a – b) – c = a – b – c
• R = a – (b – c) = a – b + c

To find:  
 • The value of L – R

Approach and Working:  
As we already have the simplified expressions of both L and R, we can get the value of L – R as follows:
 • L – R = (a – b – c) – (a – b + c) = a – b – c – a + b – c = a – a – b + b – c – c = - 2c

Hence, the correct answer is option E.

Answer: E

https://e-gmat.com/blogs/wp-content/uploads/2018/08/Ability-Quiz-NP-e1533292144892.png

ScottTargetTestPrep · Answer

L - R is:

(a - b) - c -

a - b - c -

a - b - c - a + b - c = -2c

Answer: E

If L = (a - b) - c and R = a - (b - c), then L - R =

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GMAT Problem Solving (PS) Questions

If L = (a - b) - c and R = a - (b - c), then L - R =

Prep Toolkit

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