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Re: In a given month, a restaurant spends between 55% and 70% of its reven [#permalink]
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AnieeMalik wrote:
How do we know that profit will be in range and not exact two values?

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(B, C, D) The restaurant will spend more than 55 + 23 = 78% of its revenue but less than 70 + 28 = 98% of its revenue on food, supplies, and staff salaries combined. Then its remaining net profit, after these expenses are subtracted from revenue, will be between 2% and 22% of revenue, because 100 – 78 = 22, and 100 – 98 = 2. Then for a revenue of $80,000, the profit, p, will satisfy .02 × 80,000 < p < .22 × 80,000, which implies 1600 < p < 17600. (B), (C), and (D) satisfy this.
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Re: In a given month, a restaurant spends between 55% and 70% of its reven [#permalink]
thankyou so much for your valuable explanation. But my question is how do we know we have to select 3 options and not 2

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Re: In a given month, a restaurant spends between 55% and 70% of its reven [#permalink]
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I believe Q asks - which of the following could have been its net profit?.

If we would have 4 options satisfying the condition we would have selected 4.
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Re: In a given month, a restaurant spends between 55% and 70% of its reven [#permalink]
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Re: In a given month, a restaurant spends between 55% and 70% of its reven [#permalink]
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