Two cyclist start on a circular track from a given point but in opposite direction with speeds of 7m/s and 8m/s. If the circumference of the circle is 675meters, after what time will they meet at the starting point?	Choose the correct choice from the following choices.
A) 20sec	B) 15sec	C) 45sec	D) 50sec	E) 1min
They meet every 675/7+8 = 45sec   Answer is 45sec
<result>C</result>
Two cyclist start on a circular track from a given point but in opposite direction with speeds of 7m/s and 8m/s. If the circumference of the circle is 675meters, after what time will they meet at the starting point?