To get to work, a commuter must cross train tracks. The time the train arrives varies slightly from day to day , but the commuter estimates he'll get stoped on about 15% of work days. During a certain 5-day work week , what is the probability that he

a) gets stopped on Monday and again on Tuesday. What I did here is I multiplied the prob of Tuesday and Monday (1/5*1/5= 1/25) and then found 15 % out of it. So the answer is .006. Is it right?

B) gets stopped for the first time on Tuesday?

First I found the probability that it will not come on Monday (1-1/5=4/5) and I have no idea what to do next... Can you help me?

Thank you!:wave: