Amit and Ananthu can do a work in 10 days and 20 days respectively. Amit started the work and left after 2 days. Ananthu took over and completed the work. In how many days was the total work completed?  Select:
A) 18 days
B) 20 days
C) 23 days
D) 25 days
E) 27 days
18 daysmit’s one day’s work= 1/10   18 daysmit’s 2 day’s work = 1/10 *2 = 1/5   Work left= 1-1/5 = 4/5   18 daysnanthu’s one day’s work= 1/20   18 daysnanthu can do work in = 4/5 *20= 
<gadget id="calculator">4/5 *20</gadget>
<output>16</output>
16 days   So total days= 16+2= 
<gadget id="calculator">16+2</gadget>
<output>18</output>
18 days   18 daysNSWER:18 days
<result>A</result>
Amit and Ananthu can do a work in 10 days and 20 days respectively. Amit started the work and left after 2 days. Ananthu took over and completed the work. In how many days was the total work completed?