Answer:
Weight of 15 bricks = 42.15 kg
Step-by-step explanation:
Weight of each brick = 2.81 kg
To find weight of 15 bricks
We can calculate the total weight of 15 bricks by using unitary method.
If 1 brick weights = 2.81 kg
∴ 15 bricks will weight = [tex]2.81\times 15 =42.15\ kg[/tex]