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Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400

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Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400  [#permalink]

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New post 26 Mar 2019, 05:31
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Question Stats:

90% (02:04) correct 10% (03:03) wrong based on 10 sessions

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Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400 grams of water to make lemonade. There are 25 calories in 100 grams of lemon juice and 386 calories in 100 grams of sugar. Water contains no calories. How many calories are in 200 grams of her lemonade?

(A) 129
(B) 137
(C) 174
(D) 223
(E) 411

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Re: Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400  [#permalink]

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New post 26 Mar 2019, 06:41
Bunuel wrote:
Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400 grams of water to make lemonade. There are 25 calories in 100 grams of lemon juice and 386 calories in 100 grams of sugar. Water contains no calories. How many calories are in 200 grams of her lemonade?

(A) 129
(B) 137
(C) 174
(D) 223
(E) 411


So there is 25+386 calories in 100+100+400 or 600 calories.
we are looking for calories in 200 ml, so amount of calories = \((25+386)*\frac{200}{100+100+400}=\frac{411}{3}=137\)

B
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Re: Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400  [#permalink]

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New post 26 Mar 2019, 11:36
Bunuel wrote:
Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400 grams of water to make lemonade. There are 25 calories in 100 grams of lemon juice and 386 calories in 100 grams of sugar. Water contains no calories. How many calories are in 200 grams of her lemonade?

(A) 129
(B) 137
(C) 174
(D) 223
(E) 411


total calories in 600 gms lemonade ; 25+386 ; 411
so per gm lemonade calorie ; 411/600
and in 200 gms ; 411*200/600 ; 137
IMO b
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Re: Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400   [#permalink] 26 Mar 2019, 11:36
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Francesca uses 100 grams of lemon juice, 100 grams of sugar, and 400

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