A food type question where cross multiplying wont help!?

Question

Here's a food type question but its kinda tricky.

 

Alan is making food for himself and decides to go shopping for something to eat, he finds a product that reads 1 cup and 1/3 cup is 300 calories. He also reads that the serving size is 3 on the box. Alan will only eat one serving a day and on the 3rd day alan will have no more of the product. Alan would like to stretch out the duration of product so that he can keep keep eating it for 6 days, and decides to only use a 3/4 cup for measuring to stretch the duration of the product, if alan does this will he be able to finish the product on the 6th day?

 

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Here's where i am confused. 

 

1 and 1/3 cup into decimal =  1.3 / that is 3 servings

and he is trying to make the product last for 6 days

so 3/4 cup into decimal is 0.75 so i set it up like this..

 

1.3          0.75

-----  =  ------

3             6

 

and i got 1.73...umm..what...what am i doing wrong?

Answer 1

The entire box makes 3 servings.  He eats 1/3 of that for 3 days, and it is consumed.  If he wants it to last 6 days, which is twice as long as 3 days, he should eat half as much for 6 days as he eats for 3 days.  In the problem statement, you say that 1+1/3 cups = 300 calories, but you give no information relating cups to total amount in the box, or calories to total amount in the box.  We need that information to answer the question.

 

Tell us how many cups are in the box, or tell us how many calories there are in 1 serving, and we can answer the question.