Question

Ratio of sandwiches white bread to brown bread is 10:3. 2/3 white are vegetarian, half brown are vegetarian. What fraction of the sandwiches are vegetarian?

Answer 1

8/13

Explanation:

Given in the question

Ratio of sandwiches white bread to brown bread is 10 : 3

white bread fraction = 10/13

brown bread fraction = 3/13

It is also provided that

2/3 white are vegetarian

1/2 brown are vegetarian

So

for white bread vegetables sandwich we will find 2/3 of 10

20/3/13

for brown bread vegetable sandwich we will find 1/2 of 3

3/2/13

adding both

20/3/13 + 3/2/13

8/13 (approximate)