Answer: He would lose 40 pencils in 60 days.
Explanation:
Since we have given that
Number of days = 3
Number of lost pencils = 2
If the number of days = 60
Then, the number of lost pencils would be 'x'.
Since there is direct variation between number of days and number of lost pencils.
So, it would be

Hence, he would lose 40 pencils in 60 days.