Chapter 21.4, Problem 27R

To determine

The amount of fresh orange juice that must be consumed.

Answer to Problem 27R

To get vitamin C, ${0.645}^{th}$ part of a cup of juice is to be taken.

Explanation of Solution

Given info:

Recommended dose of vitamin C is 80 milligram.

Vitamin C is in one cup of orange juice is 124 milligram.

Calculation:

124 milligram vitamin C = 1 cup of orange juice

1 milligram vitamin C = $\frac{1}{124}$ cup of orange juice

80 milligram vitamin C is in = $\frac{1}{124}\times 80$

=0.645 of a cup

Conclusion:

To get vitamin C, ${0.645}^{th}$ part of a cup of juice is to be taken.