# Brick

Brick weight before drying is 5.3 kg. After drying, the bricks is 1 kg lighter and after firing is 0.7 kg lighter than after drying. What is the weight of the brick after drying and firing?

Result

m =  3.6 kg

#### Solution:

$m = 5.3 - 1 - 0.7 = 3.6 \ \text{ kg }$

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