Answer:
1/4 (A)
Step-by-step explanation:
Let the term paper = x
Richard typed 1/4 of a term paper on Friday = 1/4 × x = x/4
Remainder = x - x/4 = (4x-x)/4
= 3x/4
Richard completed 2/3 of the remainder on Saturday =2/3 of remainder
= 2/3 × 3x/4
= 6x/12 = x/2
Remainder to be completed on Sunday = 3x/4 -x/2
= (3x-2x)/4 = x/4
Since he wanted to finish the paper that weekend, the part that was left to be typed on Sunday =x/4
= x × 1/4 (A)