Total of ages of A,B and C at present is 90 years. If ratio of this ages is 2 : 3 : 4 what will be the age of C after 2 years?
Pick one
A) 45 years B) 42 years C) 40 years D) 37 years E) None of the above
2+3+4= 
<gadget id="calculator">2+3+4</gadget>
<output>9</output>
9   4*(90/9)= 
<gadget id="calculator">4*(90/9)</gadget>
<output>40</output>
40yrs   after 2yrs=42   ANSWER:42 years
<result>B</result>
Total of ages of A,B and C at present is 90 years. If ratio of this ages is 2 : 3 : 4 what will be the age of C after 2 years?