Query about Question 8 from "Timed Quant Practice - Hard Section 2 Sample Test #7" [94]

https://www.gregmat.com/quizzes/quiz/timed-quant-practice-hard-section-2-sample-test-7 (Question 8)


can you help me solve this please? I am not able to view the solution on the test and the other methods i found online seem very tedious.

Solutions have been added for that quiz - check now?