Babu wrote a competitive examination which has scoring procedure of 3 marks for correct answer and (-1) marks for wrong answer He

2 thoughts on “Babu wrote a competitive examination which has scoring procedure of 3 marks for correct answer and (-1) marks for wrong answer He”

1. Answer :

   Babu scored 155 marks for the exam

   Given :

   • Marks given for one correct answer = 3

   • Marks given for ‎Total correct answers provided by Babu = 50

   • Total incorrect answers provided by Babu = 25

   To Find :

   • The total marks scored by Babu.

   Solution :

   → Total marks scored by Babu for the correct answers :-

   = Total no. of correct answers x Mark for each correct answer

   = 50 x 3

   = 150 marks

   Total marks scored by Babu for incorrect answers :-

   = Total no. of incorrect answers x Marks for each incorrect answer

   = 25 x (-1)

   = -25 marks

   Total marks scored by Babu for the exam:

   Marks for correct answers + Marks for incorrect answers

   = 180 + (-25)

   = 180 – 25

   = 155 marks

   Therefore, Babu scored 155 marks for the exam.

   Extra Information :

   [tex]\bf Some~ operations :[/tex]

   • (+) x (+) = (+)

   • (-) x (+) = (-)

   • (-) x (-) = (+)

   • (+) x (-) = (-)

   Reply

2. GIVEN:

   [tex]correct \: anwer \: = 3marks[/tex]

   [tex]wrong \: answer \: = ( – 1)marks[/tex]

   [tex]no \: of \: correct \: answers \: = 50 \\ no \: of \: wrong \: answers \: = 25[/tex]

   SOLUTION :

   [tex]marks \: for \: correct \: answers \: = 50 \times 3 = 150[/tex]

   [tex]marks \: for \: incorrect \: answers \: 25 \times ( – 1) = – 25[/tex]

   [tex]babu \: scored \: = correct \: answers – incorrect \:answers \: [/tex]

   [tex] = 150 – 25 = 125[/tex]

   [tex]therefore \: he \: scored \: 125 \: marks[/tex]

   Reply