Answer:
15 Nights
Explanation:
Given that,
Time Nisha spends for preparing spelling bee = 5 hours
Time spent per night = 1/3 hour per night
So, the total time she needs to study would be 3/3
If one night = 1/3
∵ 3/3 = 3 nights
If she needs to study five hours, the nights she would take
= 3 * 5
= 15nights
