Current location - Training Enrollment Network - Mathematics courses - In the first volume of the seventh grade, Huanggang began to exercise books to find answers to math problems.
In the first volume of the seventh grade, Huanggang began to exercise books to find answers to math problems.
The cost of ordering a book is X yuan.

x( 1+25%)= 1560

x = 1560/ 1.25 = 1248

The profit of Book A is1560-1248 = 312 yuan.

The cost of setting up a B book is Y yuan.

y( 1- 10%)= 1350

y= 1350/0.9= 1500

The loss of Book B is1500-1350 =150 yuan.

3 12- 150= 162

The bookstore made a profit this day 162 yuan.