There are 26 girls in hostel whose average age is decreased by 2 months, when one girl 18 yrs is replaced by a new boy.Find the age of new girl. Pick.
A) 1 year
B) 1 year 2 months
C) 4 years 4 months
D) 3 years
E) None
Total decrease = 26 * 2= 
<gadget id="calculator">26 * 2</gadget>
<output>52</output>
52 monthS= 4 years 4 months   4 years 4 months
<result>C</result>
There are 26 girls in hostel whose average age is decreased by 2 months, when one girl 18 yrs is replaced by a new boy.Find the age of new girl.