**Answer:**

19

**Step-by-step explanation:**

Given:

measuring cup size = 1/4 cup

total amount to be measured,

= 4 3/4 cups (convert to improper fraction)

= 19/4 cups.

number of 1/4 cups

= total amount measured ÷ 1/4 cup

= 19/4 ÷ 1/4

= 19/4 x 4/1

= 19/4 x 4

= 19 (1/4-cups) used