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In 2007, there were 300 juniors and 200 seniors at a high school. In 2

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In 2007, there were 300 juniors and 200 seniors at a high school. In 2  [#permalink]

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New post 22 Jan 2019, 01:29
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A
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Difficulty:

  35% (medium)

Question Stats:

64% (01:27) correct 36% (02:26) wrong based on 16 sessions

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In 2007, there were 300 juniors and 200 seniors at a high school. In 2008, there were 400 juniors and 250 seniors at the same high school. What was the approximate percent increase in the ratio of juniors to seniors from 2007 to 2008?


A 6.5%

B 6.66%

C 24%

D 25%

E 30%

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Re: In 2007, there were 300 juniors and 200 seniors at a high school. In 2  [#permalink]

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New post 22 Jan 2019, 04:37
Bunuel wrote:
In 2007, there were 300 juniors and 200 seniors at a high school. In 2008, there were 400 juniors and 250 seniors at the same high school. What was the approximate percent increase in the ratio of juniors to seniors from 2007 to 2008?


A 6.5%

B 6.66%

C 24%

D 25%

E 30%



2007 ratio : 300/200 ; 3/2
2008 ratio = 400/250' 40/25 ; 8/5

solve 8/5-3/2 / 3/2

we get 6.66 IMO B
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Re: In 2007, there were 300 juniors and 200 seniors at a high school. In 2   [#permalink] 22 Jan 2019, 04:37
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