Suppose a project with uncertain activity times has four paths shown below. The probability of completing each path in 55 days is also shown below.

Suppose a project with uncertain activity times has four paths shown below. The probability of completing each path in 55 days is also shown below. What is the probability that all paths are completed in 55 days?

Paths

Probability path is completed in 55 days

A-B-D-E-H-K-S-T

0.90 Probability

A-C-E-G-H-M-N

0.10 Probability

A-D-F-H-K-P-Q

0.90 Probability

A-I-J-L-N-T-Q

0.90 Probability

 Choices:                  

 0.0729%, 2.8%, 7.29% , 8.10% , 10%, 280% , none of the above.

Is 10% correct?