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The ratio of the number of robbers in 1990 to the number of projected

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The ratio of the number of robbers in 1990 to the number of projected  [#permalink]

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New post Updated on: 10 Jul 2019, 03:03
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91% (00:41) correct 9% (00:58) wrong based on 23 sessions

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Originally posted by Bunuel on 28 May 2017, 06:27.
Last edited by SajjadAhmad on 10 Jul 2019, 03:03, edited 1 time in total.
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Re: The ratio of the number of robbers in 1990 to the number of projected  [#permalink]

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New post 28 May 2017, 09:43
The number of robbers in 1990 is 20% of 10 million, which is 2 million.
The number of robbers in 2000 is 25% of 20 million, which is 5 million.

Hence the ratio from 1990 to 2000 is 2:5(Option A)
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Re: The ratio of the number of robbers in 1990 to the number of projected   [#permalink] 28 May 2017, 09:43
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The ratio of the number of robbers in 1990 to the number of projected

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