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suman studies 17/3hrs
time spend in science=14/5hrs
time spend in maths=14/5hrs
total time spend in maths and science =14/5+14/5=28/5hrs
=total hrs in a day=24hrs
time she devotes for other subjects=24/1-28/5
=120-28/5
=92/5
18.4hrs she devotes in other subjects
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