SOA Exam P Question 8 | Unions and Intersection

Among a large group of patients recovering from shoulder injuries, it is found that 22%
visit both a physical therapist and a chiropractor, whereas 12% visit neither of these. The
probability that a patient visits a chiropractor exceeds by 0.14 the probability that a
patient visits a physical therapist.
Calculate the probability that a randomly chosen member of this group visits a physical
therapist.
(A) 0.26
(B) 0.38
(C) 0.40
(D) 0.48
(E) 0.62

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[Kerenr]

Hi Rumi do you have any advise on these exams on how to not make silly arithmetic mistakes? especially when going really fast through these problems as needed... I'm making too many arithmetic mistakes, missing negatives signs etc... and I'm wondering if you have any thoughts on this...?