In a game of eight players lasting for 70 minutes, six substitutes alternate with each player. This means that all players, including the substitutes, are on the pitch for the same length of time. For how long?	Choose the correct choice from the following answers
A) 43 minutes
B) 46 minutes
C) 39 minutes
D) 40 minutes
E) 30 minutes
D   40 minutes   (70 Ã— 8)Ã· 14.   Total time for eight players = 70 Ã— 8 = 560 minutes.   However, as 14 people are each on the pitch for an equal length of time, they are each on the pitch for 40 minutes (560 Ã· 14);
<result>D</result>
In a game of eight players lasting for 70 minutes, six substitutes alternate with each player. This means that all players, including the substitutes, are on the pitch for the same length of time. For how long?