Question

three roommates Ava, Ben, and Cora went grocery shopping online. Ava spent three times as much Ben and half as much Cora. If together they spent a total of 50, how much did Cora spend?

Answer 1

Answer:

$16.67

Step-by-step explanation:

-Let Ben's expenditure be X,

#Ava's expenditure being three times Ben will be 3X, and half as much as Cora(2X)

-Given that the total expenditure was 50, Cora's portion is calculated as :

$Total=E_a+E_b+E_c\\\\50=2X+3X+X\\\\50=6X\\\\X=\frac{50}{3}\\\\E_c=2X=2\times \frac{50}{3}=16.67$

Hence, Cora's expenditure is $16.67