Consider the seven-component system shown in Figure 11-10. Assume that the time to failure for each component has an exponential distribution. The failure rates are as follows: λA = 0.0005/hour, λB = 0.0005/hour, λC = 0.0003/h, λD = 0.0008/hour, λE = 0.0004 / hour, λF = 0.006 / hour, and λG = 0.0064 / hour. Find the reliability of the system after 1000 hours. What is the mean time to failure of the system?