Question

A punch recipe calls for orange juice and pop in the ratio of 2:5 the recipe requires 1L of Pop to serve 7 people

a) how much orange juice is needed for 7 people?
b)about how much orange juice and pop do you need to serve 15 people? 20 people?
plz say how you answered this

Answer 1

O : P => 2 : 5

(a) 1 liter of pop to serve 7 people

=> 5 units = 1

1 unit = 1 / 5

Orange juice => 2 units

Hence, Orange juice needed is 2 * 1 / 5 = 0.4 liters

(b) If 1 liter of pop is needed to serve 7 people, then we will need (1 / 7) * 15 for 15 people

i.e. 2.14 liters

As the ratio of O : P = 2 : 5,

5 units = 2.14

1 units = 2.14 / 5

For Orange juice, we will need 2 * 2.14 / 5 = 0.856 liters for 15 people