In the multiple disc clutch, if there are 6 discs on the driving shaft and 5 discs on the driven shaft, then the number of pairs of contact surfaces will be equal to

In the multiple disc clutch, if there are 6 discs on the driving shaft

1.	In the multiple disc clutch, if there are 6 discs on the driving shaft and 5 discs on the driven shaft, then the number of pairs of contact surfaces will be equal to
A.	11
B.	12
C.	10
D.	22
Answer» D. 22