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Manager  Joined: 01 Aug 2014
Posts: 54
Schools: Rotman '17 (A)
GMAT 1: 710 Q44 V42 If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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Difficulty:   25% (medium)

Question Stats: 68% (00:56) correct 32% (01:03) wrong based on 502 sessions

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If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

Source: OG 2016, PS #126

Originally posted by Anonamy on 08 Feb 2016, 16:55.
Last edited by ENGRTOMBA2018 on 08 Feb 2016, 17:06, edited 1 time in total.
Added the complete information of the source.
##### Most Helpful Expert Reply
Math Expert V
Joined: 02 Aug 2009
Posts: 7686
If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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6
2
Anonamy wrote:
If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

Source: OG 2016, PS #126

hi,

1 millimeter = 0.1 centimeter..
so 10 mm= 1 cm..
$$10mm*10mm*10mm=1cm*1cm*1cm$$..
1000cu mm= 1 cu cm..
so 1 cu mm = $$\frac{1}{1000}$$ cu cm..
$$32490$$ cu mm =$$\frac{32490}{1000}$$ cu cm = $$32.49$$ cu cm
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Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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Anonamy wrote:
If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

This is not a 700 level question. I have changed the tag to sub-600 level and added the complete source information.

As for this question, remember that 1 cm = 10 mm

Thus, $$32490 {mm}^3 = 32490 * 10^{-3} {cm}^3 = 32.49 {cm}^3.$$

C is thus the correct answer.

Hope this helps.
Manager  Joined: 01 Aug 2014
Posts: 54
Schools: Rotman '17 (A)
GMAT 1: 710 Q44 V42 If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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Apologies, I intended to categorize it as 600 level. This question is #126 out of 175 in OG Quant 2016.
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Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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Anonamy wrote:
If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

Since 1 millimeter = 0.1 centimeter, then 1 millimeter^3 = 0.1 x 0.1 x 0.1 centimeter = 0.001 centimeter^3

Thus, 32,490 cubic millimeters = 32,490 x 0.001 = 32.49 cubic centimeters

Answer: C
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Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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Anonamy wrote:
If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

Source: OG 2016, PS #126

hi there is my approach correct ?

1 cm = 10 mm

10 cm = 100 mm

100 cm = 1000 mm

hence:

32,490 / 1000 = 32.49
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Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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1
Anonamy wrote:
If the volume of a ball is 32,490 cubic millimeters, what is the volume of the ball in cubic centimeters? (1 millimeter = 0.1 centimeter)

(A) 0.3249
(B) 3.249
(C) 32.49
(D) 324.9
(E) 3,249

Source: OG 2016, PS #126

$$1$$ $$millimeter$$ = $$\frac{1}{10}$$ $$centimeter$$

So, $$1$$ $$millimeter ^3$$ = $$(\frac{1}{10})^3$$ $$centimeter^3$$

So, 32,490 cubic millimeters = $$\frac{32,490}{1000}$$ $$centimeter^3$$

Answer must be (C) 32.49
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Manager  B
Joined: 16 May 2018
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Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum  [#permalink]

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1mm=0.1CM9
10mm=1cm
so 10000mm= 1000cm
32490/1000= 32.49 Re: If the volume of a ball is 32,490 cubic millimeters, what is the volum   [#permalink] 03 May 2019, 05:53
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# If the volume of a ball is 32,490 cubic millimeters, what is the volum

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