Correct option is D
Given
Dimensions of Box A = 20 cm × 5 cm × 4 cm Dimensions of Box B = 16 cm × 5 cm × 3 cm
Formula used
Volume of a cuboid = Length × Breadth × Height
Solution
Volume of Box A = 20 × 5 × 4 = 400 cm³
Volume of Box B = 16 × 5 × 3 = 240 cm³
Since 400 cm³ > 240 cm³, Box A has greater volume.
The correct option is (d)