Organise the information

Official Guide practice (find these in your Official Guide or at www.gmatclub.com)

Here are some Official Guide questions that will be useful for practice, but be aware that developing the skill of organizing information clearly and efficiently is something that applies to just about every GMAT problem.

PS07308 Each week, a clothing salesperson

PS07799 A certain restaurant

PS02295 On a vacation, Rose exchanged

PS15358 A collection of 16 coins,

PS13801 Abdul, Barb, and Carlos

PS13159 The price of gasoline at a service station

PS15523 Company Q plans

PS02996 Of the land owned by a farmer,

PS05560 In a recent election, Ms. Robbins

PS69400.02 Last year a state senate

PS04617 After driving to a riverfront parking lot

DS12062 Last semester, Professor K

DS07839 A certain investment

DS11109 For a certain car repair

DS11805 The people in a line waiting

DS03628 A certain plumber charges $92

DS00602.01 A certain painting job requires a mixture of yellow, green, and white paint.

DS08420 On June 1, Mary paid Omar $360

DS05330 A company makes and sells two products, P and Q.

DS14527 For a certain city’s library,

DS16078 Stores L and M each sell

DS07262 Two points, N and Q (not shown), lie to the right of point M

DS18414 A group consisting of several families visited an amusement park

DS08301 Each of the letters in the table above

Reflect and analyse

Look again at the above problems and answer these questions:

1.      Can you find any pattern among the problems that you got wrong (or nearly wrong)?

2.      What different ways did you organize the information? Can you invent some categories?

3.      What kind of traps did you find in these problems?

4.      All of the problems above can be solved without Algebra. If you used Algebra to solve some of these problems, re-do them to find a non-algebraic method. This will stimulate you to think about problems in different ways.