Given: Eva bought popcorn, candy, and a drink such that
• The popcorn was ,three times, as expensive as the candy.
,
• The drink was ,twice ,as expensive as the candy.
Required: To determine the cost of the candy.
This is explained thus:
Let the cost of the candy be x.
Therefore, the cost of the popcorn is 3x.
Also, the cost of the drink is 2x.
Since she spent a total of $10.50, we can determine the cost of the candy thus:

Hence, the cost of the candy is $1.75.