A boy have written his exams his mathematics and science marks is 100 more than English.the average of three subjects numbers is 60.find his marks in English
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Take M as marks in Maths, E as English marks and S as Sciencs marks.
M+S=E+100
(M+S+E)/3=60
=>(E+100+E)/3=60
=>2E+100=180
=>2E=80
=>E=40
He got 40 marks in English.
M+S=E+100
(M+S+E)/3=60
=>(E+100+E)/3=60
=>2E+100=180
=>2E=80
=>E=40
He got 40 marks in English.
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