Free SAT Section 2: Mathematics Exam Braindumps (page: 4)

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If the surface area of a cube is 384 cm2, what is the volume of the cube?

  1. 64 cm3
  2. 256 cm3
  3. 512 cm3
  4. 1, 152 cm3
  5. 4, 096 cm3

Answer(s): C

Explanation:

The surface area of a cube is equal to 6e2, where e is the length of one edge of the cube; 6e2= 384 cm, e2= 64, e = 8 cm. The volume of a cube is equal toe3; (8 cm)3= 512 cm3.



What is the next number in the series below?
3 16 6 12 12 8

  1. 4
  2. 15
  3. 20
  4. 24
  5. 32

Answer(s): D

Explanation:

This series actually has two alternating sets of numbers. The first number is doubled, giving the third number. The second number has 4 subtracted from it, giving it the fourth number. Therefore, the blank space will be 12 doubled, or 24.



The volume of a glass of water placed in the sun decreases by 20%. If there are 240 mL of water in the glass now, what was the original volume of water in the glass?

  1. 192ml
  2. 260ml
  3. 288ml
  4. 300ml
  5. 360ml

Answer(s): D

Explanation:

The original volume of water, x, minus 20% of x, 0.20x, is equal to the current volume of water, 240ml:



What is the tenth term of the pattern below?

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

Answer(s): E

Explanation:

Each term in the pattern is equal to the fraction2/3raised to an exponent that is equal to the position of the term in the sequence. The first term in the sequence is equal to , the second term is equal to






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