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 Rawalpindi

List of major colleges in Rawalpind ...

Colleges in karachi

A comprehensive list of major colle ...

Scholarships News

Have scholarship and Financial Aid ...

Merits in Pakistan

Calculate merit for any university ...

ISSB Tests

Learn about ISSB - Armed forces rec ...

PAF - Cadet Wing

Join Pakistan Air Force as a Cadet. ...

LUMS - Lahore University of Management Sciences

The most popular university LUMS of ...

Islamia College Peshawar

ICP is a prestigeous college at sta ...