GMAT Test

GMAT Test practice questions, page 4 of 65, with answer review and explanations.

Question 16

For every X, the action [X] is defined: [X] is the greatest integer less than or equal to X. What is the value of [6.5] ֳ— [2/3] + [2] ֳ— 7.2 + [8.4] גˆ’ 6.6?

  1. 12.6.
  2. 14.4.
  3. 15.8.
  4. 16.2.
  5. 16.4.

Question 17

What is the decimal equivalent of ?

  1. 0.0032
  2. 0.032
  3. 0.00625
  4. 0.003125
  5. 0.0016

Question 18

How many four-digit numbers that do not contain the digits 3 or 6 are there?

  1. 2401
  2. 3584
  3. 4096
  4. 5040
  5. 7200

Question 19

The telephone company wants to add an area code composed of 2 letters to every phone number. In order to do so, the company chose a special sign language containing 124 different signs. If the company used 122 of the signs fully and two remained unused, how many additional area codes can be created if the company uses all 124 signs?

  1. 246
  2. 248
  3. 492
  4. 15,128
  5. 30,256

Question 20

The average (arithmetic mean) of seven numbers is 12.2. If the sum of four of these numbers is 42.8, what is the average of the other 3 numbers?

  1. 12.4
  2. 14.2
  3. 16.8
  4. 18.6
  5. 19.2