The task is to generate the correct answer for a given math problem.

[Q]: Problem: 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 ?
[A]: 18 days


[Q]: Problem: convert 2 / 5 to a decimal
[A]: 0.4


[Q]: Problem: a sum fetched a total simple interest of $ 4061.25 at the rate of 9 p . c . p . a . in 5 years . what is the sum ?
[A]:
$ 892