Answer:
16 in. X 20 in will keep more.
Step-by-step explanation:
Length of picture = 4 inches
Breadth of picture = 6 inches
Area of picture=
=
=
Length of frame 1 = 16 inches
Breadth of frame 1 = 20 inches
Area of frame 1 =
So, % of picture can fit in frame 1=
=
=
Length of frame 2 = 18 inches
Breadth of frame 2 = 24 inches
Area of frame 2 =
So, % of picture can fit in frame 2 =
=
=
Since % of picture can fit in frame 1 is more than frame 2 .
So, 16 in. X 20 in will keep more.