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# Eric, Nick and Archi make contributions to the Society Of Nature Prote

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Joined: 02 Sep 2009
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Eric, Nick and Archi make contributions to the Society Of Nature Prote  [#permalink]

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29 Jun 2016, 06:49
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Difficulty:

15% (low)

Question Stats:

100% (02:12) correct 0% (00:00) wrong based on 17 sessions

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Eric, Nick and Archi make contributions to the Society Of Nature Protection in the ratio of 5:3:2.5. If altogether they contribute 5145 Nis, how much more money does Nick contribute than Archi?

A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis

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Re: Eric, Nick and Archi make contributions to the Society Of Nature Prote  [#permalink]

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29 Jun 2016, 07:45

Normalising the fraction from 5:3:2.5 to 10:6:5 (Eric: Nick:Archi)
Given Nick contributes one unit more than Archi and one unit of 5145/(10+6+5) = 245
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Re: Eric, Nick and Archi make contributions to the Society Of Nature Prote  [#permalink]

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29 Jun 2016, 09:42
Bunuel wrote:
Eric, Nick and Archi make contributions to the Society Of Nature Protection in the ratio of 5:3:2.5. If altogether they contribute 5145 Nis, how much more money does Nick contribute than Archi?

A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis

Nick contribution - Archi cintribution

5145/10.5 (3-2.5)

5145/10.5 *.5= 245

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Re: Eric, Nick and Archi make contributions to the Society Of Nature Prote  [#permalink]

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29 Jun 2016, 19:12
Bunuel wrote:
Eric, Nick and Archi make contributions to the Society Of Nature Protection in the ratio of 5:3:2.5. If altogether they contribute 5145 Nis, how much more money does Nick contribute than Archi?

A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis

5+3+2.5=10.5

10.5x=5145

Nick-Arhi=3x-2.5x=0.5x

If 10.5x=5145
then 0.5x=?

0.5*5145/10.5=245

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Re: Eric, Nick and Archi make contributions to the Society Of Nature Prote  [#permalink]

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29 Jun 2016, 22:31
Eric, Nick and Archi make contributions to the Society Of Nature Protection in the ratio of 5:3:2.5. If altogether they contribute 5145 Nis, how much more money does Nick contribute than Archi?

A. 128 Nis
B. 212 Nis
C. 234 Nis
D. 245 Nis
E. 288 Nis

E:N:A 5:3:2.5

so total = 5x + 3x + 2.5 x = 10.5 x = 5145
so x = 490

Nick Contribution is 0.5 more than Archi so 0.5 x =0.5 * 490 = 245

So D. 245 Nis is the correct answer
Re: Eric, Nick and Archi make contributions to the Society Of Nature Prote   [#permalink] 29 Jun 2016, 22:31