Kaya devoted 2/5 of her study time to maths, 3/20 of her time to social studies 1/3 of her time to chemistry and remaining 42 minutes to english. How much time she spend studying Social Studies?

Dear student
Let the time devoted by Kaya in her studies be x minutesTime devoted in studying Maths=2x5Time devoted in studying Social Studies=3x20Time devoted in studying Chemistry=x3Time devoted in studying English=42 minSo, Total time devoted by Kaya in her studies=Time devoted in studying Maths+Time devoted in studying Social Studies+Time devoted in studying Chemistry+Time devoted in studying Englishx=2x5+3x20+x3+42x-2x5-3x20-x3=4260x-24x-9x-20x60=427x=42×60x=360So, Time devoted in studying Social Studies=3x20=3×36020=54min
Regards

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