SOLUTION: 20% of 30 professional r mathematician how many mathematician it should hire so the ratio vll become 10/11

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Question 570803: 20% of 30 professional r mathematician how many mathematician it should hire so the ratio vll become 10/11
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
20% of 30 professional r mathematician how many mathematician it should hire so the ratio will become 10/11
:
Let m = no. of math guys required to accomplish this
That means there were .2(30) = 6 math guys to start with
%28%28m%2B6%29%29%2F%28%28m%2B30%29%29 = 10%2F11
Cross multiply
11(m+6) = 10(m+30)
11m + 66 = 10m + 300
11m - 10m = 300-66
m = 234 math guys needed
:
:
Check:
240%2F264 = 10%2F11