Answer:
She worked
hours in evening.
Explanation:
Let x be the hours she worked in evening,
Since, she works 1.75 hours less in the afternoon than in the evening.
So, the number of hours she worked in afternoon = x - 1.75,
According to the question,
( By adding 1.75 on both sides and change mixed fraction into simple fraction in right side )
Hence, she worked
hours in evening.