Answer:

Step-by-step explanation:
consider downloading photomath
We must assume that all workmen work at the same rate, and keep it up forever.
More men ==> fewer days
so the proportion is: 30/25 = x/10
Cross-multiply the proportion:
300 = 25 x
Divide each side by 25 :
x = 300/25 = <u>12 men</u>
Answer:
B
Step-by-step explanation:
Line k is // to line m.
Slopes of // lines are equal.
Answer: 2/3