The area of the cardboard needed to make a box of size 25 cm x 15 cm x 8 cm will be
We know that,
Surface area of cuboid = 2 (lb + bh + hl)
Therefore,
Area of the cardboard required to make a box = 2 (23 × 15 + 15 × 8 + 25 × 8)
= 2 (375 + 120 + 200)
= 1390 cm2
Hence, option B is correct