Answer:
hours
Explanation:
Given,
The total numbers of hours allotted = 4,
In first 2 hours,
Practice in first hour =
hour,
In second hour =
hour,
Remaining hours = 4 - 2 = 2 hours,
In remaining 2 hours,
Practice in first hour =
hour
Rest time =
hour
Remaining time or practice in second hour =

Total time of practicing =



hours