Bunuel wrote:

A mixture consists of flaxseed and cornmeal in the ratio 1 to 4, respectively. How many cups of flaxseed are used to make the mixture?

(1) There are a total of 15 cups in the mixture.

(2) The ratio of the number of cups of flaxseed to the total number of cups in the mixture is 1 to 5.

We are given the ration of flaxseed to cornmeal as 1 : 4 , hence from this we know that

1 cup of flaxseed for 5 cups of mixtures &

4 cups of cornmeal for 5 cups of mixture.(1) There are total 15 cups. Hence we can find flaxseed cups from this info - \(\frac{1}{5} * 15 = 3\)

Hence sufficient.(2) Ration of flaxseed to total is 1 : 5

No new info given here as we already know this from Q Not suffHence

Option (1) is correct.

Best,

Gladi