A train stops on track C every 10 minutes. A train stops on track D every 6 minutes. Trains stop on track C and track D at 10:30 am. When will trains stop on both tracks at the same time again?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?