Bashir read 5 books in 10 months. What was his rate of reading in books per month?

Bashir read 5 books in 10 months, so his rate of reading in books per month is 5 books / 10 months = 0.5 books per month.

give me the math behind it

To calculate the rate of reading in books per month, we use the formula:

Rate = Total books read / Total months

Given that Bashir read 5 books in 10 months, we can plug in the values:

Rate = 5 books / 10 months
Rate = 0.5 books per month

Therefore, Bashir's rate of reading in books per month is 0.5 books.