If there is an increase in the number of trained mechanics, what will happen to the wage and quantity of mechanics?

decrease, increase

Explanation:

If the number of trained mechanics increases, there will be a decrease in the wage of the mechanics and the quantity of the mechanics will increase.

In demand and supply, if there is an increased in the number of mechanics, their wages will decrease there will be abundant supply of mechanics to do work. Where if the supply was less or there is scarcity of mechanics, then the wages would have increased.

Also the quantity of mechanics increases as there are now more number of mechanics in the town.