Answer:
There are 316 page in each math book.
Explanation:
There are 7900 pages in 25 math books. how many page each math book.
Let the number of page in each notebook be X
There are 7900 pages in 25 math books .
=

By Cross-Multiply ,we get
X =

X =
.......... (divide numerator and denominator by 5 )
X = 316
There are 316 page in each Math book .