What is a empty box weighs 0.5kg .ivy puts 10 toy bricks inside it and the box now weighs 2kg how much do the bricks weigh?

The bricks weigh 1.5 kg in total. This can be calculated by subtracting the original weight of the empty box from the weight of the box with the bricks inside: 2kg - 0.5kg = 1.5kg.