Explanation:
20 men can do 1 W in 36 days
=> 20 men can do 1/36 W in 1 day
=> 10 men can do 1/72 W in 1 day.
30 girls can do 1W in 36 days
=> 30 girls can do 1/36 W in 1 day
=> 12 girls can do 1/90 W in 1 day.
Together 10 men and 12 girls can do 1/72 + 1/90 W in 1 day
= 9/360 = 1/40 W in 1 day.
Therefore they need 40 days to do the piece of work.
Claim of argument, perhaps!
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Your answer is b hope it’s right
<span>In the early 1900s, progressives succeeded in strengthening federal control over the money supply by United States Constitution. It's a way to strengthen the way on how the banks in the state will manipulate their financial status. The answer to the question is United States Constitution.</span>
