If a recipe call for 3/8 cups of flour for 8 people, how many cups of flour would be required for a recipe for 128 people?

Question

If a recipe call for 3/8 cups of flour for 8 people, how many cups of flour would be required for a recipe for 128 people?

Answer 1

A, this is a ratio question.  We have (3/8)/8 = x/128.  You can solve it different ways.

 

If I asked you to solve for x if 3/4 = x/8, how would you solve for x?

 

I hope this helps.

Answer 2

Use ratio, 

  3/8 cups : 8 people = x cups : 128 people

  solve,  8x = 48, or x = 6

Answer, 6 cups of flower