﹙ 1﹢25%﹚x= 1560

x= 1560÷ 1.25

x= 1248

Profit of Type A books:1560-1248 = 312 yuan.

Set the second kind of books for y yuan.

﹙ 1- 10%﹚y= 1350

y= 1350÷0.9

y= 1500

Profit of Book B:1350-1500 =-150 yuan.

The profit of this bookstore this day * * *: 312-150 =162 yuan.