Sushma got 89 marks in mathematics out of 160,50 marks in social studies out of 100 and 75 in science out of 140.
Find her aggregate percentage.
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89×100=8900
8900÷160=55.625%
50×100=5000÷100=50%
75×100=7500
7500÷140=53.571%
55.63+50+53.57=159.20
159.20÷3=53.66
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