Answer:
Use both measuring cups 16 times and then use the cup to measure twice for exactly 10 cups.
Step-by-step explanation:
When working with fractions, I like to make the denominators the same first.
cup = cup
cup = cup
10 cups = cups
Now, for the most efficient method, it would be reasonable to use both cups so that it is quicker.
1 scoop using both cups: + = cup in total
No. of scoops using both cups: ÷ = 16 R
You know that using both cups, you can scoop 16 times with a remainder of . You cannot scoop using both cups without the remaining left to scoop, so you have to use only one cup to scoop. The bigger cup is the cup, so I will use that one to scoop the remaining .
No. of scoops using the cup: ÷ = 2
Overall, you will use both cups together for 16 times, then use the cup twice.