Problem: a student completes a 3 part exam as follows . the student completes sections a in 6 minutes and takes an equal time to complete the two remaining sections . what is the ratio of time spent on section c to section a if the total duration is 1 hour ?
Rationale: "the time spent on section b and section c is 27 minutes each . the ratio of c to a is 27 : 6 = 9 : 2 the answer is b ."
annotated_formula: divide(3, const_4)