Current location - Training Enrollment Network - Mathematics courses - Xiao Ming spent 10.4 yuan to buy 5 math books and 2 refills, while Xiao Li spent the same amount of 6.8 yuan to buy 3 math books and 2 refills. How much is each math book? each
Xiao Ming spent 10.4 yuan to buy 5 math books and 2 refills, while Xiao Li spent the same amount of 6.8 yuan to buy 3 math books and 2 refills. How much is each math book? each
The first time is 10.4-6.8=3.6 yuan.
The first time 1 bought two more math books than the second time, so these two math books are in 3.6 yuan, each 1.8 yuan.
5 This math book *** 1.8*5=9 yuan, so the two refills are 10.4-9= 1.4 yuan.