View All num of num See all Photos Towers Watson www.towerswatson.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 468 Reviews 887 Salaries 276 Interviews 620 Jobs Follow Add Interview Follow Add Interview Interview Question Summer Intern Interview Wuhan, Hubei (China) Towers Watson estimate how many planes are there in the sky Tags: See more , See less 8 Answer Add Tags Answer Interview Answer 2 Answers ▲ 0 ▼ ask for the restrictions, now? whole world? business plane? Interview Candidate on 2010-10-11 ▲ 1 ▼ This is a question where one wants to put a number out there after much inane mental strategy--just to "get it right" or prove their mathematical fortitude using pragmatical nonsense. I wouldn't fall for it . I would remark that the variables preclude any reasonable guess for practical purposes. BUT I do appreciate the question's novelty and will say, "about a third of all planes in existence, because some are landing, some are boarding and the remainder are in flight." Wendy Godfrey on 2011-03-04 Interviews > Summer Intern > Towers Watson Add Answers or Comments To comment on this, Sign In or Sign Up.