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Of the following, which is closest to (0.15*495)/(9.97) ?

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Of the following, which is closest to (0.15*495)/(9.97) ?  [#permalink]

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New post 17 Sep 2013, 16:37
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90% (00:52) correct 10% (00:47) wrong based on 128 sessions

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Of the following, which is closest to \(\frac{0.15*495}{9.97}\)?

(A) 7.5
(B) 15
(C) 75
(D) 150
(E) 750
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Re: Of the following, which is closest to (0.15*495)/(9.97) ?  [#permalink]

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New post 17 Sep 2013, 17:52
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Re: Of the following, which is closest to (0.15*495)/(9.97) ?  [#permalink]

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New post 21 Jul 2014, 02:24
jlgdr wrote:
Of the following, which is closest to \(\frac{0.15*495}{9.97}\)?

(A) 7.5
(B) 15
(C) 75
(D) 150
(E) 750


0.15 x 495 = 74.25 (Calculate: 15 x 495, switch comma two places to the left.)

74.25 / 10 = 7.425

Answer A.
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Re: Of the following, which is closest to (0.15*495)/(9.97) ?  [#permalink]

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New post 21 Jul 2014, 06:52
jlgdr wrote:
Of the following, which is closest to \(\frac{0.15*495}{9.97}\)?

(A) 7.5
(B) 15
(C) 75
(D) 150
(E) 750


This can be written as

(15*495)/997 ~(15*500)/1000
~=>75/10 = 7.5

A)

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Re: Of the following, which is closest to (0.15*495)/(9.97) ?  [#permalink]

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New post 29 Nov 2017, 09:53
jlgdr wrote:
Of the following, which is closest to \(\frac{0.15*495}{9.97}\)?

(A) 7.5
(B) 15
(C) 75
(D) 150
(E) 750


Multiplying the entire expression by 100/100 we have:

(15 x 495)/997, which is close to (15 x 500)/1000 = 15/2 = 7.5.

Alternate Solution:

Let’s approximate the numerator by re-expressing it as 0.15 x 500, which equals 75. Now let’s round the denominator to 10. Thus, we have an an approximate answer of 75/10 = 7.5.

Answer: A
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Re: Of the following, which is closest to (0.15*495)/(9.97) ?   [#permalink] 29 Nov 2017, 09:53
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