1
Random Double Matrix Question #1
May 1, 2001: In honor of International Double Matrix month, I thought I’d post some
random Double Matrix questions with video solutions.
These questions are very popular on
the GMAT, so if you want a solid score,...
More
1
Random Double Matrix Question #1
May 1, 2001: In honor of International Double Matrix month, I thought I’d post some
random Double Matrix questions with video solutions.
These questions are very popular on
the GMAT, so if you want a solid score, you’ll have to master them.
What’s a Double Matrix question?
It’s a question that involves a certain population where each member of that population has
two characteristics associated with it.
Questions that fall into this category can often be
solved using the Double Matrix Method.
For an introductory lesson on the Double Matrix Method, please watch the video at
http://www.
youtube.
com/watch?v=OWD2t5jCCZQ
Afterwards, you can try solving the following mid-range data sufficiency question:
All members of the Travelers Club have been to France or India or both.
The Club
has 80 members, and 30 of those members have been to France.
How many
members have been to India?
(1) 10 members have been to both India and Franc
Less
