The number of discs on the driving shaft and driven shafts are 3 and 4, respectively. Determine the number of pairs of contact surfaces for friction clutch.

The number of discs on the driving shaft and driven shafts are 3 and 4

1.	The number of discs on the driving shaft and driven shafts are 3 and 4, respectively. Determine the number of pairs of contact surfaces for friction clutch.
A.	8
B.	6
C.	5
D.	7
Answer» C. 5