Arun scored 93 marks in maths, 48% of the
marks in science and x marks in social
science. If each subject had a maximum of
150 marks and he scored on aggregate of
70%, then find what percent of the total
marks did he score in social science?
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Step-by-step explanation:
Maximum marks in each subject= 150
marks scored in maths=73/150
marks scored in science=56*150/100=84
marks scored in science=x
total marks = 150*3=450
total marks secured by him=73+84+x
avg percent=54
total marks in 3 subjects=54*450/100=243
marks in science=243-157=86
therefore marks in science = 86
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