Respuesta :
40 hours. Armando reads 20 pages per 4 hours. 20*10 would get to 200 which is the total amount of pages. So you would multiply the amount of hours by the same amount 4*10 which = 40 hours total.
Answer:
40 Hours
Step-by-step explanation:
20=4
40=8
60=12
80=16
100=20
120=24
140=28
160=32
180=36
200=40