3.7, 4.1, a, 8.5, 9.2, 2a

Adam

Hey Noor,
We aren't actually looking for the value of a. We need to know the value of a, yes, but the question is asking us for the range of the numbers, not the value of a. The minimum value of a is 4.600001, which gives a range slightly more than 5.5. The maximum value of a is 8.4999, which gives a range slightly less than 13.3. So anything between 5.5 and 13.3 works as an answer choice.

Hope that helps!

Feb 18, 2019 • Reply

Jonathan , Magoosh Tutor

Hi Anik,
a cannot equal 4.2 because then 2a would be 8.4 and 2a would not be greater than 9.2
We are told the numbers are in increasing order, so 2a must be greater than 9.2

Nov 6, 2017 • Reply

Sam Kinsman

Keep in mind that a has to be greater than 4.6. If a is 4.45, then 2a is 8.9. Notice that 2a is listed after 9.2, which means that 2a is greater than 9.2. If a = 4.45, then 2a will not be greater than 9.2, so a cannot be 4.45

Jul 22, 2017 • Reply

Cydney Seigerman, Magoosh Tutor

Hi there :)

Good question! It turns out that a cannot equal 4.1. If that were the case, then 2a = 8.2 and the values would not be listed in increasing order.

Hope that helps :)

Apr 15, 2016 • Reply

Francisco Olivas

So we have to find the range of possible ranges to cross out options, right?

Oct 11, 2017 • Reply

Jonathan , Magoosh Tutor

Hi Francisco,
Yes, that's correct. We find the range must be greater than 5.5 and less than 13.3.

Nov 6, 2017 • Reply