Pls help me its urgent ?

Hi,

I found some printing mistakes in CPT Study Materials issued by the Institute.

I  provide below for your reference. It seems there are many.

1. Model Test papers Vol - II Page - 20  Qn. No. 151 Mistake - 64 to the power 1/2 . But as per Suggested Answers/Hints it should be 64 to the power -1/2.

2. Quantitative Aptitude Page - 13.14 Mistake - P(AUB) = P(A) + P(A).

I have seen some more also but I have not recorded them .please i need correct ket