Loading...

Lesson: Data Sufficiency Challenging - 07t01

Time Is Of The Essence, continued

[Page 7 of 24]

What is the value of x + y?

1) mx + ny + xn + ym = 10

2) m + n = 6

Can we establish definitive sufficiency or insufficiency for Statement 1 using the statement alone, or do we need to calculate? Select an answer and then click Continue.

1) mx + ny + xn + ym = 10

  Statement 1 is sufficient. Statement 1 is insufficient. Calculation is necessary.

Countinue

The question stem asks for the value of x + y, so we don’t necessarily need to know the values of x and y independently. We need to know only what their sum is. But the equation in this statement has four variables, including x and y, so there’s no way we could get rid of m and n and be left with a numerical value as the sum of x and y. This is insufficient.

Now let’s look at the second statement.

Countinue

Next to display next topic in the chapter.

Test Prep Lessons With Video Lessons and Explained MCQ

More for You
All in this Category

You may be interested in

Colleges in cities of Khyber Pakhtoonkhwa

Comprehensive lists of colleges in ...

Colleges in Lahore

Find a comprehensive list of major ...

Making Millions

How to become a successful person i ...

Study in Australia

Opportunities of Studies in Austral ...

SAt Subject Mathematics

Find all about SAT-II Mathematics w ...

ISSB - G.T.O. Tasks

Learn all about to deal ISSB - G.T. ...

FJMC - MBBS

Fatima Jinnah Medical College MBBS ...

NCA National College of Arts

The most popular name in fine art s ...