Consider a task set with with the following independent periodic
tasks:
Task P1:C1 = 20; T1 = 100
Task P2:C2 = 30; T2 = 145
Can these tasks be successfully scheduled using rate monotonic
scheduling?

Now consider another task;
Task P3:C3 = 68; T3 = 150

Suppose that the first instance of the these three tasks arrive at
time t = 0. Assume that the first deadline for each task is the
following:
D1 = 100; D2 = 145; D3 = 150
Using rate monotonic scheduling, will all three deadlines be met? what
about deadlines for future repetitions of each task?