If worker A can do a piece of work alone in 6 days and worker B can do it alone in 4 days, how long will it take the two working together to complete the job?

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.