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If A=3.45454545, what is the result of A if rounded to the nearest

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If A=3.45454545, what is the result of A if rounded to the nearest  [#permalink]

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New post 06 Jul 2017, 01:57
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

82% (00:25) correct 18% (00:36) wrong based on 52 sessions

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If A=3.45454545, what is the result of A if rounded to the nearest  [#permalink]

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New post 06 Jul 2017, 02:31
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Bunuel wrote:
If A=3.45454545, what is the result of A if rounded to the nearest hundredth?

A. 3.4
B. 3.45
C. 3.46
D. 3.5
E. 4


If a number N = abc.defg

then c = Unit digit
b = Tens digit
a = Hundreds digit


d = Tenth digit
e = Hundredth digit
f = Thousandth digit


Focus on underlined part in above explanation


A=3.45454545 is to be rounded off at highlighted digit

Since next digit after the highlighted is less than 5 hence highlighted digit will remain same while rounding off

A=3.45

Answer: option B
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If A=3.45454545, what is the result of A if rounded to the nearest  [#permalink]

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New post 06 Jul 2017, 04:30
Bunuel wrote:
If A=3.45454545, what is the result of A if rounded to the nearest hundredth?

A. 3.4
B. 3.45
C. 3.46
D. 3.5
E. 4


\(A=3.45454545\)

From the given expression ,

\(A = 3.454\)

From left to right after decimal \(:\) \(4\) is on tenth place and \(5\) is on hundredth place and next \(4\) is on thousandth place.

Thousandth place is less than \(5\), hence when number is rounded to hundredth place, hundredth place digit would be the same.

Hence the answer would be;

\(A = 3.45\)

Answer (B)...
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Re: If A=3.45454545, what is the result of A if rounded to the nearest  [#permalink]

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New post 06 Jul 2017, 08:00
Bunuel wrote:
If A=3.45454545, what is the result of A if rounded to the nearest hundredth?

A. 3.4
B. 3.45
C. 3.46
D. 3.5
E. 4


Clean (B) , no doubt about this one...
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Re: If A=3.45454545, what is the result of A if rounded to the nearest  [#permalink]

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New post 06 Jul 2017, 10:35
Bunuel wrote:
If A=3.45454545, what is the result of A if rounded to the nearest hundredth?

A. 3.4
B. 3.45
C. 3.46
D. 3.5
E. 4


Hundredth digit will be 2 after the decimal.
A = 3.454..
Since the digit after the hundredth digit is < 5, we will keep the hundredth digit as is.

Hence A = 3.45

Correct Option: B
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Re: If A=3.45454545, what is the result of A if rounded to the nearest   [#permalink] 06 Jul 2017, 10:35
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