• Never get involved in lengthy calculations.
• Try to express the information given in the question into mathematical expressions.

Example: Al, Lew, and Karen pooled their funds to buy a gift for a friend. Al contributed two dollars less thanrd of the cost of the gift but for Lew who contributed two dollars more thanth of the cost. If Karen contributed the remaining $15, what was the cost of the gift?

(A) $24
(B) $33
(C) $36
(D) $43
(E) $45

• Always go through the options after reading the question. Options always give some hint.

Example: Out of a certain high school graduating class, 75% of the students continued with their formal education, and 80% of those who continued with their formal education went to four-year colleges. If 300 students in the class went to four-year colleges, how many students were there in the graduating class?

(A) 500
(B) 375
(C) 240
(D) 225
(E) 180

• Use elimination method to solve the question.
• For questions involving variables, plug in some value for the variables since it is much easier to deal with numeric values rather than with variables.

The number 25 is 2.5 percent of which of the following?

(A) 10
(B) 62.5
(C) 100
(D) 625
(E) 1,000

• In GMAT options would always be in ascending order.

Cottages at a resort are rented for half the summer price in each of the three months of spring and one-third the summer price in each of the six fall and winter months. If each cottage brings in a total of $3 861 when rented for each of the 12 months of the year, what is the monthly rent for each of the three summer months?

(A) $297
(B) $594
(C) $702
(D) $858
(E) $1 782

• You must learn DS options by heart. Because it would always been in same order in the GMAT exam also.

(A) If statement (i) alone is sufficient but statement (ii) alone is not.
(B) If statement (ii) alone is sufficient but statement (i) alone is not.
(C) If both (i) and (ii) together are sufficient but neither of them is sufficient independently.
(D) If both statements independently are sufficient.
(E) If both (i) and (ii) together are not sufficient.

GMAT-AWA

GMAT-CR

GMAT-DS

GMAT-RC