Answer:
Hours in first month = 8
Step-by-step explanation:
AS it is given
He volunteered fr the first month = x hours
He volunteered for the second month = 12/3 times of first month
which will be = [tex]\frac{12}{3}*x[/tex]
Total Hours volunteered = 40 hours
Now according to the given conditions
Volunteered first month + volunteered second month = total
putting this gives
x + [tex]\frac{12}{3}*x[/tex] = 40
as 12/3 = 4 so
it becomes
x + 4x = 40
solcing it will gives
5x = 40
x = 40/5
x = 8
So Numbers of hours worked in first month are 8