The number of sociology books is 59 and the number of biology books is 177.
Step-by-step explanation:
Given,
The number of biology textbooks sold was three times the number of sociology textbooks.
Total number of books = 236
To find the number of each types of books.
Let,
The number of sociology books = x
The number of biology books = 3x
According to the problem,
3x+x = 236
or, 4x = 236
or, x = [tex]\frac{236}{4}[/tex]
or, x = 59
Hence,
The number of sociology books = 59
The number of biology books =3×59 = 177
