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# The number 0.01 is how many times as great as the number (0.0001)^2?

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Math Expert
Joined: 02 Sep 2009
Posts: 52294
The number 0.01 is how many times as great as the number (0.0001)^2?  [#permalink]

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05 Jul 2018, 03:58
00:00

Difficulty:

25% (medium)

Question Stats:

69% (00:55) correct 31% (01:06) wrong based on 50 sessions

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The number $$0.01$$ is how many times as great as the number $$(0.0001)^2$$?

(A) $$10^2$$

(B) $$10^4$$

(C) $$10^6$$

(D) $$10^8$$

(E) $$10^{10}$$

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Joined: 02 Aug 2009
Posts: 7202
Re: The number 0.01 is how many times as great as the number (0.0001)^2?  [#permalink]

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05 Jul 2018, 04:13
Bunuel wrote:
The number $$0.01$$ is how many times as great as the number $$(0.0001)^2$$?

(A) $$10^2$$

(B) $$10^4$$

(C) $$10^6$$

(D) $$10^8$$

(E) $$10^{10}$$

$$(0.0001)^2=(1*10^{-4})^2=10^{-8}=10^{-2}*10^{-6}=0.01^10^{-6}$$
so $$(0.0001)^2=0.01*10^{-6}.........0.01=(0.0001)^2*10^6$$

C
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1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html

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Re: The number 0.01 is how many times as great as the number (0.0001)^2?  [#permalink]

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05 Jul 2018, 08:30
Bunuel wrote:
The number $$0.01$$ is how many times as great as the number $$(0.0001)^2$$?

(A) $$10^2$$

(B) $$10^4$$

(C) $$10^6$$

(D) $$10^8$$

(E) $$10^{10}$$

We are asked to find out $$\frac{0.01}{(0.0001)^2}$$=$$\frac{10^{-2}}{(10^{-4})^2}$$=$$\frac{10^{-2}}{10^{-8}}=10^{-2+8}=10^6$$

Ans. (C)
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Re: The number 0.01 is how many times as great as the number (0.0001)^2?  [#permalink]

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07 Jul 2018, 17:24
Bunuel wrote:
The number $$0.01$$ is how many times as great as the number $$(0.0001)^2$$?

(A) $$10^2$$

(B) $$10^4$$

(C) $$10^6$$

(D) $$10^8$$

(E) $$10^{10}$$

We can create the equation:

0.01 = (0.0001)^2 x k

0.01/[0.0001 x 0.0001] = k

(10^-2)/(10^-8) = k

10^6 = k

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Re: The number 0.01 is how many times as great as the number (0.0001)^2? &nbs [#permalink] 07 Jul 2018, 17:24
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