HCU MCA 2013 Paper

When the big hand of the clock is exactly at the 12 o’clock position, an ant starts to crawl in a counter clockwise direction from the 6 o’clock position at a constant speed. On reaching the big hand of the clock, the ant turns around and at the same speed, starts to crawl, in the opposite direction. Exactly 45 min after the first meeting with the big hand the ant crosses the big hand for the second time and dies. How long has the ant been crawling?