The surface area of a (10 cm x 4 cm x 3 cm) brick is
We know that,
Surface area of a cuboid = 2 (lb + bh + hl)
= 2 (10 × 4 + 10 × 3 + 4 × 3)
= 2 (40 + 30 + 12)
= 164 cm2
Hence, option C is correct