The phrase "varying difficulties" is correct and usable in written English.
You can use it to describe a situation or challenge that has elements of different kinds of difficulty or complexity. For example, "This project presents varying difficulties which must be carefully managed in order to ensure success."
Developer King's Candy Crush Saga, which has been downloaded more than 500 million times by mobile users, boasts over 400 levels of varying difficulties where players match up three sweets or treats of the same design or colour, with big rewards for combos and high scores.
It's deliriously simple, and clicks from the first turn – but as I flicked through levels of varying difficulties, acing some immediately and having to repeat others to even register a slow time (attempts are instantly reset with the pressing of a button), I couldn't tear my eyes away from the screen.
It's deliriously simple, and clicks from the first turn but as I flicked through levels of varying difficulties, acing some immediately and having to repeat others to even register a slow time (attempts are instantly reset with the pressing of a button), I couldn't tear my eyes away from the screen.
Accordingly, the nature of the challenges that a student has to overcome are likely to vary with the progression of the doctoral program itself, perhaps echoing a key point in Tinto's landmark paper on student attrition, which highlights the (p.439) "varying difficulties individuals face over time in attempting to persist in college" [ 56].
South Run Stream Valley Park has trails of varying difficulty.
In all, the gym has over 100 climbing "problems" of varying difficulty.
Two hundred bilateral lower third molars of varying difficulty were extracted.
You'll have the chance to try routes of varying difficulty throughout the day.
And near the top of the bluff is Hartshorne Woods Park, which has trails of varying difficulty for hiking or biking.
THE GREAT OUTDOORS Dozens of hiking trails of varying difficulty zigzag around the area.
JS Bach probably thought of it first – a small collection of music by various composers, of varying difficulty.
