With the end of the 20 17 college entrance examination mathematics subject, what parents and candidates want to know most is nothing more than the answers to the college entrance examination mathematics questions. Next, I will provide you with the questions and answers of the 20 17 Jiangsu College Entrance Examination for liberal arts mathematics for your reference. I wish the college entrance examination students good results this year.

2. Given the complex number z=( 1+i)( 1+2i), where i is an imaginary unit and the modulus of z is _ _ _ _ _ _ _.

The answer to this question is the root number 10.

3. A factory produces four different types of products, A, B, C and D, with output of 200, 400, 300 and 100 respectively. In order to test the product quality, 60 pieces were sampled by layers from all the above products, and 1 piece was selected from Class C products.

The answer to this question is 18.

10. A company buys 600 tons of a commodity a year, and the freight is 60,000 yuan/time for each purchase of X tons, and the total storage cost is 4 million yuan a year. In order to minimize the sum of total freight and total storage in one year, the value of x is

The answer to this question has not been announced yet, so please pay attention.

The above are some questions and answers of the 20 17 Jiangsu liberal arts mathematics test paper, for reference only.