If a runs less fast than b and b run fast but not faster than c then as compared to A, C runs

Same speed as A

Faster than A

Slower than A

Cannot be determined

A runs less fast than B → B is faster than A.

A runs less fast than B → B is faster than A.
B runs fast but not faster than C → This means B is either equal to or slower than C.

From this, we can conclude:

If B is already faster than A and C is at least as fast as B, then C is definitely faster than A.

C runs faster than A