A firm is comprised of partners and associates in a ratio of 2:61. If 75 more associates were hired, the ratio of partners to associates would be 4:137. How many partners are currently in the firm? Choices.
A) 12 B) 14 C) 16 D) 18 E) 20
The ratio 2:61 = 4:122 so the ratio changed from 4:122 to 4:137.   137-122= 
<gadget id="calculator">137-122</gadget>
<output>15</output>
15 which is 1/5 of the increase in 75 associates.   The ratio changed from 20:610 to 20:685.   Thus the number of partners is 20.   The answer is 20.
<result>E</result>
A firm is comprised of partners and associates in a ratio of 2:61. If 75 more associates were hired, the ratio of partners to associates would be 4:137. How many partners are currently in the firm?