Question

a school conducts two weekly tests and a term exam. to calculate the aggregrate percentage of of Marks obtained by a student , calculations are done as follow (weekly total test) /2+80% of term exam​

Answer 1

Answer:

Sorry

Explanation:

I do know the answer

Answer 2

Answer:

First of all, the detailed method:

Aggregate marks in each exam = 500

Marks obtained in first exam = 45% of 500 = 225

Marks obtained in second exam = 55% of 500 = 275

Total marks in three exam = 500*3 = 1500

Marks needed to get 60% = 900

Marks obtained in first two exams = 225+275 = 500

So, marks needed in third exam = 900-500 = 400.

So 400 marks or 80% is needed to get 60% overall.

Now short cut method:-

Required percentage = 60*3 =180

Percentage obtained = 55+45 = 100

Percentage needed in last exam = 180-100 = 80

So 80% or 400 marks are needed.

Thanks for the A2A

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