Lesson: Data Sufficiency Challenging - 07t06

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.

Can we establish definitive sufficiency or insufficiency for Statement 2 using the statement alone, or do we need to calculate? Select an answer and then click Continue.

2) m + n = 6

  Statement 2 is sufficient. Statement 2 is insufficient. Calculation is necessary.

Can we establish definitive sufficiency or insufficiency using just the two statements, or do we need to calculate? Select an answer and then click Continue.

1) mx + ny + xn + ym = 10

2) m + n = 6

  The statements together are sufficient. The statements together are insufficient. Calculation is necessary.

Can we establish definitive sufficiency or insufficiency by using our new equations, or will we need to calculate? Select an answer and then click Continue.

1) mx + ny + xn + ym = 10 or, rearranging: ? mx + my + nx + ny = 10

2) m + n = 6

  The statements together are sufficient. The statements together are insufficient. Calculation is necessary.

Countinue

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