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If a kilogram is equal to approximately 2.2 pounds, which of the follo

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If a kilogram is equal to approximately 2.2 pounds, which of the follo  [#permalink]

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New post 13 Jan 2019, 11:00
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If a kilogram is equal to approximately 2.2 pounds, which of the following is the best approximation of the number of kilograms in one pound?

A. \(\frac{11}{5}\)

B. \(\frac{1}{4}\)

C. \(\frac{5}{11}\)

D. \(\frac{1}{3}\)

E. \(\frac{1}{5}\)

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Re: If a kilogram is equal to approximately 2.2 pounds, which of the follo  [#permalink]

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New post 15 Jan 2019, 07:10
SajjadAhmad wrote:
If a kilogram is equal to approximately 2.2 pounds, which of the following is the best approximation of the number of kilograms in one pound?

A. \(\frac{11}{5}\)

B. \(\frac{1}{4}\)

C. \(\frac{5}{11}\)

D. \(\frac{1}{3}\)

E. \(\frac{1}{5}\)



1 kg = 2.2 lbs
1 lbs = 1/2.2 = 10/22 = 5/11
IMO C
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Re: If a kilogram is equal to approximately 2.2 pounds, which of the follo  [#permalink]

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New post 15 Jan 2019, 09:10
SajjadAhmad wrote:
If a kilogram is equal to approximately 2.2 pounds, which of the following is the best approximation of the number of kilograms in one pound?

A. \(\frac{11}{5}\)

B. \(\frac{1}{4}\)

C. \(\frac{5}{11}\)

D. \(\frac{1}{3}\)

E. \(\frac{1}{5}\)


\(1 \ kg = 2.2 \ lb\)

Or, \(10 \ kg = 22 lb\)

Or, \(22 \ lb = 10 \ kg\)

Or, \(11 \ lb = 5 \ kg\)

Or, \(1 \ lb = \frac{5}{11} \ kg\), Thus Answer must be (C)
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Re: If a kilogram is equal to approximately 2.2 pounds, which of the follo  [#permalink]

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New post 15 Jan 2019, 22:09
1kg = 2.2 pound
hence 1 pound = \frac{1}{2.2}
or \frac{10}{22}
simplifying \frac{5}{11}
ans C
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Re: If a kilogram is equal to approximately 2.2 pounds, which of the follo  [#permalink]

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New post 17 Jan 2019, 19:00
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SajjadAhmad wrote:
If a kilogram is equal to approximately 2.2 pounds, which of the following is the best approximation of the number of kilograms in one pound?

A. \(\frac{11}{5}\)

B. \(\frac{1}{4}\)

C. \(\frac{5}{11}\)

D. \(\frac{1}{3}\)

E. \(\frac{1}{5}\)


The number of kilograms in one pound is 1/2.2 = 10/22 = 5/11.

Alternate Solution:

We can set up a proportion: One kilogram is to 2.2 pounds as x kilograms is to 1 pound:

1/2.2 = x/1

1/2.2 = x

10/22 = x

5/11 = x

Answer: C
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Re: If a kilogram is equal to approximately 2.2 pounds, which of the follo   [#permalink] 17 Jan 2019, 19:00
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