Question

the ratio of sugar to flour for cooking cake is 1/2 to 2. what percent of cake is flour ? (assume that there are only sugar and flour in the cake )​

Answer 1

Answer:

Percentage of Flour in cake = 80%

Step-by-step explanation:

We are given,

Sugar : Flour = (1/2) : 2

Let there be (1/2)x g of Sugar and 2x g of Flour

Now,

Percentage of Flour in cake = (Amt. of Flour ÷ Amt. of total substance) × 100

Amt. of Flour = 2x g

Amt. of Total Substance (Both Sugar and Flour) = 2x + (1/2)x

= (4/2)x + (1/2)x

= ((4 + 1)/2)x

= (5/2)x

% of Flour in cake = [2x/(5/2)x] × 100

= (2/(5/2)) × 100

= (2 × (2/5)) × 100

= (4/5) × 100

= 4 × 20

= 80%

Hence,

Percentage of Flour in cake = 80%

Hope it helped and believing you understood it....All the best