Wednesday

April 23, 2014

April 23, 2014

Posted by **Anonymous** on Thursday, July 28, 2011 at 3:43pm.

- math -
**Mithra**, Thursday, July 28, 2011 at 5:10pmFirst race car driver:

time = distance / speed

time = 50 miles / 90 mph

time = 0.55556 x 60

time = 33 minutes 20 seconds

The first race car driver will took 33 minutes & 20 seconds to finish the race

Fifteen minutes later a second race car drive start

time = distance / speed

time = 50 miles / 120 mph

time = 0.41667 x 60

time = 25 minutes

The second race car driver will took 25 minutes to complete the 50 miles

Now, add 25 minutes & 15 minutes = 40 minutes

Therfore, the first race car driver will finish 6 minutes & 40 seconds before the second race car driver.

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