DRT Mini Unit
Name: _________________________________
Part 1: Mixture Problems
For a birthday party, Kathryn mixed together 3 gal. of Brand A fruit punch and 6 gal. of Brand B.
Brand A contains 17% fruit juice and Brand B contains 26% fruit juice. What percent of the mixture
is fruit juice?
Kallie disagreed with Kathryn’s mixture. Instead, she mixed 9 gallons of Brand A fruit drink and 6
gallons of Brand B fruit juice which contains 5% fruit juice. Find the percent of fruit juice in Brand A
if the mixture contains 11% fruit juice.
How many gallons of a 65% saline solution must be mixed with 8 gallons of pure water to make a
25% solution?
Heather wants to make a 36% acid solution. She has already poured 3 fluid ounces of a 72% acid
solution into a beaker. How many fluid ounces of a 9% acid solution must she add to this to create
the desired solution?
To build the garden of your dreams you need 10 cubic feet of soil containing 17% clay. You have
two types of soil you can combine to achieve this: soil with 35% clay and soil with 10% clay. How
much of each soil should you use?
Bronze which costs $7.05/kg is made by combining copper which costs $6.20/kg with tin which
costs $8.70/kg. Find the number of kg of copper and tin required to make 5 kg of bronze.
Part 2: Distance-Rate-Time
A cruise ship made a trip to Guam and back. The trip there took 12 hours and the trip back took 9
hours. It averaged 20 km/h on the return trip. Find the average speed of the trip there.
Wilbur left his house with his friends and traveled towards Six Flags. They unfortunately hit a lot of
traffic and were only traveling at an average speed of 33 km/h. Mary left with her friends two
hours later and took the same path, but missed the traffic, allowing them to travel at an average of
55 km/h. How long did Wilbur travel before Mary caught up?