There are 240 doctors and nurses at a hospital. If the ratio of doctors to nurses is 3 to 7, how many nurses are at the hospital?  Choose the correct choice from the following answers:
A) 168	B) 172	C) 176	D) 180	E) 184
The number of nurses at the hospital is (7/10)*240= 
<gadget id="calculator">(7/10)*240</gadget>
<output>168</output>
168.   The answer is 168.
<result>A</result>
There are 240 doctors and nurses at a hospital. If the ratio of doctors to nurses is 3 to 7, how many nurses are at the hospital?