Elitmus Exam Numerical Ability Averages

Ram aims to score an average of 80 marks quarterly and half yearly exams.But his average in quarterly is 3 marks less than his target and that in half yearly is 2 mark more than his aim. The diff b/w the total marks scored in both the exams is 25.Total marks aimed by ram is:
a)400 b) 410 c) 420 d) 380

Read Solution (Total 2)

let there are x no. of subjects
so in quarterly exam RAM gets total (80-3)*x=77x
and in half yearly exam RAM gets total (80+2)*x=82x
therefore 82x-77x=25
or,5x=25
so x=5
Total marks aimed by ram is 80*5=400
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