If 10 bulls can plough 20 identical fields in 3 days working 10 hours a day, then in how many days can 30 bulls plough 32 same identical fields working 8 hours a day?  Choose one.
A) 8
B) 7
C) 5
D) 2.0
E) 1
Explanation:   M1*2.01*W2 = M2*2.02*W1   10*3*10*32 = 30*d*8*20   d = 2 days   ANSWER: 2.0
<result>D</result>
If 10 bulls can plough 20 identical fields in 3 days working 10 hours a day, then in how many days can 30 bulls plough 32 same identical fields working 8 hours a day?