Free SAT Section 2: Mathematics Exam Braindumps (page: 19)

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Four copy machines make 240 total copies in three minutes. How long will it take five copy machines to make the same number of copies?

  1. 2 minutes
  2. 2 minutes, 15 seconds
  3. 2 minutes, 24 seconds
  4. 2 minutes, 45 seconds
  5. 3 minutes, 36 seconds

Answer(s): C

Explanation:

If four copy machines make 240 copies in three minutes, then five copy machines will make 240 copies in x minutes:


Five copy machines will make 240 copies in 2.4 minutes. Since there are 60 seconds in a minute, 0.4 of a minute is equal to (0.4)(60) = 24 seconds. The copies will be made in 2 minutes, 24 seconds.



If 40% of j is equal to 50% of k, then j is

  1. 10% larger than k.
  2. 15% larger than k.
  3. 20% larger than k.
  4. 25% larger than k.
  5. 80% larger than k.

Answer(s): D

Explanation:

40% of j= 0.4j, 50% of k = 0.5k. If 0.4j= 0.5k, = 1.25kis equal to 125% of k, which means that j is 25% larger thank.



Which of the following could be equal to x/4x?

  1. Option A
  2. Option B
  3. Option C
  4. Option D
  5. Option E

Answer(s): E

Explanation:

Divide the numerator and denominator of x/4xbyx, leaving1/4Divide the numerator and denominator of5/20by 5. This fraction is also equal to1/4.



There are seven vocalists, four guitarists, four drummers, and two bassists in Glen Oak's music program, while there are five vocalists, eight guitarists, two drummers, and three bassists in Belmont's music program. If a band comprises one vocalist, one guitarist, one drummer, and one bassist, how many more bands can be formed in Belmont?

  1. 4
  2. 10
  3. 16
  4. 18
  5. 26

Answer(s): C

Explanation:

Multiply the numbers of vocalists, guitarists, drummers, and bassists in each town to find the number of bands that can be formed in each town. There are (7)(4)(4)(2) = 224 bands that can be formed in Glen Oak. There are (5)(8)(2)(3) = 240 bands that can be formed in Belmont; 240 224 = 16 more bands that can be formed in Belmont.






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