Solving this equation is 3400/2x-16000/x =100.

It is verified that X = 100 is the root of the original equation, which accords with the meaning of the question.

=200,

∴ 100+200=300.

A: The mall bought 300 pieces of this electronic product twice.

(2) Assuming that the price of each electronic product in the shopping mall is Y yuan,

∵ The first batch of products * * * sold 100/ 10= 10 days,

The second batch of products will take 200/( 10-2) days to sell.

From the meaning of the title, it means 300 y-16000-34000-10× 60-25× 60 ≥ (16000+34000 )× 20/100.

Solve this inequality to get Y≥207.

A: The price of each electronic product in this mall is at least 207 yuan.