Suppose son name is 120,his brother name is 150 and his mother name is 230.find out his father's name???  Choose the correct choice from the following options.
A) 190
B) 210
C) 230
D) 240
E) 260
since difference between all name is =30   so father's name will be  230+30= 
<gadget id="calculator"> 230+30</gadget>
<output>260</output>
260.   ANSW260R:260
<result>E</result>
Suppose son name is 120,his brother name is 150 and his mother name is 230.find out his father's name???