Ann and mike had to attend a conference in Edmonton. Ann took a character bus and rode 400km to Edmonton. mike drove his own car and travelled 368 km to Edmonton. on his journey he was delayed by road construction which resulted in his average speed of his journey being 8km per hours slower than the average speed of the bus. if they both left home at the same time , and arrived at Edmonton at 10:30 am , at what time did mike leave home