There are two possible answers:
2/5 problems per minute
or
5/2 minutes per problem.
The logic behind these fractions is simple. You have two measures: 2 problems and 5 minutes.
So one fraction, the first, is "2 problems" divided by "5 minutes"
and the other is "5 minutes" divided by "2 problems".
It is a mixed fraction.
The denominator in the unsimplified fraction.
1/4
A fraction.
1.75 as a fraction in its lowest terms = 7/4
It is a mixed fraction.
A mixed number or mixed fraction.
The denominator in the unsimplified fraction.
1/4
A fraction.
0.2 = 1/5
The simple past tense.
The adventure log shows what you've completed on the game.
He Just Gives you a Certificate that shows that you have completed the Pokedex. Thats All He Does.
1.75 as a fraction in its lowest terms = 7/4
1/10
mixed number