Problema Solution
Three circuits are operated on a storage battery. Circuit 1 completely discharges
the battery in 24 hours, circuit 2 discharges in 18 hours, and circuit 3 discharges
in 9 hours. All circuits are connected in parallel. Circuit 1 is switched on at 8 AM
and the other two circuits are switched on at 10 AM. At what time will the battery
be totally discharged?
Answer provided by our tutors
The time after 10 AM needed is x
1/24 *2 +(1/24 + 1/18 + 1/9)x = 1
So
x = 4.4
So the time completed is 2:24 PM