What percentage of the whole week does Ajay spend in office, if his office hours are 9 am to 5 pm from Monday to Friday ?

Answer: Option B

Time spend by Ajoy in a day = 8 hrs
Time spend by Ajay in a week = 8 × 5 = 40 hrs
Percentage time spend in a week :
= $$\frac{40}{24\times 7}$$ × 100
= 23.81%