Xiaoming/kloc finishes a story book in 0/0 day, and he finishes it in 2 days on average.

A story book, Xiao Ming 10 days to read. Xiaohua is two days longer than Xiaoming. It is known that Xiaoming reads five pages more than Xiaohua every day, and the average speed ratio of how many pages Xiaohua reads every day is =10+2:10 =12:10 = 6: 5.

On average, Xiaohua reads = 5 ÷( 6-5) x 5 = 25 pages a day.

Extended data

This topic mainly studies the associative law of multiplication and some relations between common simple multiplication.

The mathematical expression of the law of multiplicative association: a×b×c=a×(b×c).

Commonly used multiplication relations:

( 1)0。 25×4= 1。

(2)25×4= 100。

(3) 1。 25×8= 10。

(4)0。 125×8= 1。

Simple calculation of other required formulas:

(1) subtraction formula 1: a-b-c = a-(b+c).

(2) subtraction formula 2: a-b-c = a-c-b.