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Benny and Kenny took part in a cycling race. In 60 minutes, Benny had completed only `3/5` of the race while Kenny had already completed the entire race.

Benny's average speed for the race was 360 m/min slower than Kenny's.

(a) What is the distance of the race?

(b) What is Benny's average speed in m/min ?

(c) What is Kenny's average speed in km/h ?

Notes to student:

If the question above has parts(e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12