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If 0.497 mark has the value of one dollar, what is the value

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If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 02 May 2012, 20:43
2
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

59% (01:05) correct 41% (01:07) wrong based on 347 sessions

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If 0.497 mark has the value of one dollar, what is the value to the nearest dollar of 350 marks?

A. $174
B. $176
C. $524
D. $696
E. $704

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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post Updated on: 02 May 2012, 21:45
0.497 marks = 1 dollar
=> 1 mark = 1/0.497 dollars
=> 350 marks = 350/0.497 = 704 dollars

Option (E)
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Originally posted by GyanOne on 02 May 2012, 21:09.
Last edited by GyanOne on 02 May 2012, 21:45, edited 1 time in total.
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 02 May 2012, 21:38
am so sorry...i dont know why it didnot click for the first time...

the answer is E

0.497==>1
350==>?(say x)

then x = 350/0.497 appx = 704
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 19 Nov 2012, 19:15
1
.497 is approx .5

Since we rounded up, that is, we said that slightly more marks equals a dollar, we will have to factor this back in.

1/2 mark = 1 dollar

350(1/2) = 700 dollar

+ what we rounded up, thus 704
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 18 Jun 2013, 22:22
AlyoshaKaramazov wrote:
.497 is approx .5

Since we rounded up, that is, we said that slightly more marks equals a dollar, we will have to factor this back in.

1/2 mark = 1 dollar

350(1/2) = 700 dollar

+ what we rounded up, thus 704



I know this is a noob question but still I don't get this concept..
Since we rounded up 0.497 to 0.500 should we reduce the final value ?
we got 700 so shouldn't the answer be chosen in the 600 range ?


Thanks,
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 19 Jun 2013, 02:33
Rockstar21 wrote:
AlyoshaKaramazov wrote:
If 0.497 mark has the value of one dollar, what is the value to the nearest dollar of 350 marks?

A. $174
B. $176
C. $524
D. $696
E. $704

.497 is approx .5

Since we rounded up, that is, we said that slightly more marks equals a dollar, we will have to factor this back in.

1/2 mark = 1 dollar

350(1/2) = 700 dollar

+ what we rounded up, thus 704



I know this is a noob question but still I don't get this concept..
Since we rounded up 0.497 to 0.500 should we reduce the final value ?
we got 700 so shouldn't the answer be chosen in the 600 range ?


Thanks,


Consider this:
0.497 marks = $1;

0.5 marks = more than $1;

0.5*700=350 marks = more than $1*700=$700.

Answer: E.

Similar question to practice: m14-78632.html

Hope it helps.
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 26 Jan 2019, 13:58
To get from marks to dollars you need to multiply by slightly more than 2.

350(slightly more than 2) = slightly more than 700.
So choice E is correct.
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 27 Jan 2019, 12:11
(E)
0.497 mark = 1$.
1 mark = \(\frac{1}{0.497}\) $.

Let's round off 0.497 to 0.5.
1 mark = \(\frac{1}{0.5}\) $.
350 mark =\(\frac{350}{0.5}\) $ = 700 $

Now we are left with option D and E.
0.5 > 0.497
We know that dividing by a bigger number gives a smaller result. Since we divided by bigger of the two numbers ( 0.5 and 0.497 ), we got a smaller result.
Dividing with 0.497 ( the smaller number), as in the original equation would have given us a result bigger than 700.
The only option bigger than 700 is E -> 704
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Re: If 0.497 mark has the value of one dollar, what is the value  [#permalink]

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New post 27 Jan 2019, 12:49
we need not divide the complicated numbers

Using approximation

\(0.5 \, marks = 1\)
\(350 \, marks =\frac{350}{0.5} = 700\)

As the denominator is slightly less than 0.5 .
the quotient will be slightly more than 700 .

IMO E
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Re: If 0.497 mark has the value of one dollar, what is the value   [#permalink] 27 Jan 2019, 12:49
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