Answer
P(No immediate ignition) = 1 - P(immediate ignition)
= 1 - 0.01 = 0.99
P(Delayed ignition and no immediate ignition) = 0.99 x 0.01 = 0.0099
P(Jet or flash fire) = P(immediate ignition) + P(Delayed ignition and no immediate ignition)
= 0.01 + 0.0099 = 0.0199
Work Step by Step
As given in answer