Zifo RnD Solutions interview questions

1. 12 coins are there one of them is fake. Find the fake one in maximum of 3 measurements. 2. 4 persons have to cross a tunnel in 15 minutes, each of them have different velocities. 3. Venn diagram question (easy but complicated) 4. relationship type reasoning question. 5. Linear equation question. All these type of questions are easily available on google. So do practice adequately before your interview.