Suppose son name is 120,his brother name is 150 and his mother name is 220.find out his father's name???
Select: A) 190 B) 210 C) 230 D) 240 E) 250
since difference between all name is =30   so father's name will be  220+30= 
<gadget id="calculator"> 220+30</gadget>
<output>250</output>
250.   ANSW250R:250
<result>E</result>
Suppose son name is 120,his brother name is 150 and his mother name is 220.find out his father's name???