Question

Alexa and Harold each bought bottles of water-based cleaning solution. The table below shows the price, volume, and concentration of each bottle. (Note: the concentration refers to the percentage of each solution's volume that is the "active ingredient" rather than water.)
Alexa's bottle Harold's bottle
Price $8.50 $8.99
Volume 650 mL 780 mL
Concentration 56% 52%
Who got the better deal? Complete the paragraph to explain.
Alexa's bottle contains about
mL of the active ingredient per dollar spent. Harold's bottle contains about
mL of the active ingredient per dollar spent. So
got the better deal.

Answer 1

Alexa's bottle contains about 42.8 mL of the active ingredient per dollar spent. Harold's bottle contains about 45.1 mL of the active ingredient per dollar spent. So Harold got the better deal.