Is x equal to 5 ? (1) x ≥ 5 (2) x ≤ 5

Question

Is x equal to 5 ?

(1) x ≥ 5 
(2) x ≤ 5

GMATinsight · Accepted Answer

Question : Is x = 5?

Statement 1 : x ≥ 5  
x may be equal to or may be greater than 5 hence
NOT SUFFICIENT

Statement 1 : x ≤ 5  
x may be equal to or may be less than 5 hence
NOT SUFFICIENT

Combining the two statements 
x can be only 5 hence

SUFFICIENT

Answer: Option C

Rhl5084 · Answer

Easy one...

Q: Is x equal to 5?

Statement 1. x ≥ 5

Ans : lets assume no which will satisfy this equation : 5 & 6

Not sufficient as we are not getting a confirm yes/no

Statement 2. x ≤ 5

Ans : lets assume no which will satisfy this equation : 4 & 5

Not sufficient as we are not getting a confirm yes/no

Combining statement 1 & 2, we get a single value i.e. 5, which gives us a confirmed yes..

rajatchopra1994 · Answer

Explanation:

Is x equal to 5 ?

Statement 1: x ≥ 5
X is greater or equal to 5
Not Sufficient

Statement 2: x ≤ 5
X is less or equal to 5

From 1 & 2;
X is 5
Sufficient

IMO-C

Posted from my mobile device

gmatcafe · Answer

Answer is C. Only 5 can satisfy when both conditions are taken together.

MathRevolution · Answer

Forget the conventional way to solve DS questions.

We will solve this DS question using the variable approach.

DS question with 1 variable: Let the original condition in a DS question contain 1 variable. In other words, there are two fewer equations than variables. Now, we know that each condition (1) and (2) would usually give us an equation, however, since we need 1 equation to match the numbers of variables and equations in the original condition, the unequal number of equations and variables should logically give us an answer D.

To master the Variable Approach, visit https://www.mathrevolution.com and check our lessons and proven techniques to score high in DS questions.

Let’s apply the 3 steps suggested previously. [Watch lessons on our website to master these 3 steps]

Step 1 of the Variable Approach: Modifying and rechecking the original condition and the question.

We have to find whether x= 5 .

Second and the third step of Variable Approach: From the original condition, we have 1 variable (x). To match the number of variables with the number of equations, we need 1 equation. Since conditions (1) and (2) will provide 1 equation each, D would most likely be the answer.

Let’s take a look at each condition.

Condition(1) tells us that x ≥ 5.

=> 'x' can be '5' or more

=> For x = 5 - is x = 5 - YES

=> For x = 6 - is x = 5 - NO

Since the answer is not unique YES or NO, condition(1) is not sufficient by CMT 1.

Condition(2) tells us that x ≤ 5.

=> 'x' can be '5' or less

=> For x = 5 - is x = 5 - YES

=> For x = 1 - is x = 5 - NO

Since the answer is not unique YES or NO, condition(1) is not sufficient by CMT 1.

Let’s take a look at both conditions together.

=> x ≥ 5 and x ≤ 5 , only x = 5 possible - is x = 5 - YES

Since the answer is unique YES, both conditions together are sufficient by CMT 1.

So, C is the correct answer.

Answer: C

prateekchugh · Answer

Is x equal to 5 ?

x=5 ?

(1) x ≥ 5

x=5,6,7,8......

This statement is insufficient
(2) x ≤ 5

x=5,4,3,2,1,0......

This statement is insufficient

1) + 2) x=5
Answer is C

palaknayyar · Answer

Statement 1: x can be 5 or more- insufficient- strike-off AD
Statement 2: x can be 5 or less- insufficient- Strike-off B
Combining the two statements- there is only 1 value that can satisfy both= 5. (no other number can be both above and below 5)

Final answer = C

(can only hope to see this as my first question on the GMAT..

)

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Is x equal to 5 ? (1) x ≥ 5 (2) x ≤ 5

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GMAT Data Sufficiency (DS) Questions

Is x equal to 5 ? (1) x ≥ 5 (2) x ≤ 5

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