Q. 1155.0( 2 Votes )

# In an examination

Answer :

Let x be the marks of candidate in thirs paper

total marks secured in all three papers = 53 + 75 + x

Total marks of three papers = 100 + 100 + 100 = 300

Percentage of marks = × 100%

= × 100%

Overall 70% of marks obtained × 100 = 70 = 70

128 + x = 210

x = 210 – 128

x = 82

Hence, 82 marks must be secured to get overall of 70% marks

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