Out of the three annual examinations each with a total of 500 marks a student secured average marks ...........

Quantitative Aptitude ( CCS) Average

Out of the three annual examinations, each with a total of 500 marks, a student secured average marks of 56% and 64% in the first and second annual examinations. To have an overall average of 64%, how many marks does the student need to secure in the third annual examination ?

360

340

320

270

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Explanation:

Solution:
Total marks for three examinations = 3x 500 = 1500
Total required marks in three examinations = 64% of 1500 = 960
Marks secured in first examination = 56 % of 500 =280
Marks secured in third examination = 64 % of 500 =320
Thus, the required marks in third examination
=960 – ( 280 + 320 )
=960 – 600
= 360.