Ram gets 148 marks for 20 questions. +10 for correct. -3 for wrong. How many correct answers?

16

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Chitra K Raj

  • Mar 16th, 2006
 

Let x be the no of right answers10x-3(20-x)=148x=16

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meenakshi vishnoi

  • Jul 30th, 2006
 

the answer is 16

if x be the no. of correct answers then

no.of wrong answers=20-x

10x-3(20-x)=148

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